Use mental math to find the sum.
80+40+170

Answers

Answer 1

Answer:

290

Step-by-step explanation:

80+40=120

120+170=290

290

Answer 2

Answer:

290

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks


Related Questions

Find the next two numbers in a pattern?

7, - 28,112, - 448 __, __, . . .

Answers

Answer:

1,792    -7168

the pattern is to multiply by -4

Step-by-step explanation:

7 · -4 = -28

-28 · -4 = 112

112 · -4 = -448

-448 · -4 = 1,792

1,792 · -4 = -7168

1792 and the times four and then so on

helllpppp I need to get my grade up to a B by Thursday!!

Answers

Answer:

Less than

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

Less-than

Step-by-step explanation:

Angle Q measures 30 degrees. If angle Q is rotated 15 degrees, what is the measure of angle Q′?

Answers

30°

an angle has the same measurement no matter what direction you rotate it

30 degrees hope this helps!

Trey's racehorse weighs 400 kilograms. How much does it weigh in grams?
Be sure to include the correct unit in your answer.

Answers

Answer,, 400000 grams

Explanation, 1 kilogram = 1000 grams,, you basically have to multiply 400 by 1000, you get 400000,, you're welcome. :)

HELP ME WITH MY MATH

Answers

Answer:36

Step-by-step explanation:

36. Correct me if I’m wrong!

Mrs.Page bought a new singing outfit. After 7.5% tax sales tax, she paid $32.25. what was the original price of the outfit?

Answers

Answer:

$30.00

Step-by-step explanation:

reverse tax calculator

Selling Price = Final Price / 1 + Sales Tax

The answer is
$30.00

Match the two numbers with their least common multiple (LCM)
Term Definition
_______ _______
8 and 4 A) 24
8 and 6 B) 40
8 and 10 C) 8

Answers

Answer:

The LCM for 8 and 4 is C) 8

The LCM for 8 and 6 is is A) 24

The LCM for 8 and 10 is B) 40

Step-by-step explanation:

hope it helps <3, brainliest plz ?

8 and 4 is C, 8 and 6 is A, and 8 and 10 8 is B

Refer to the equation 2x − 6y = 12.
step 1 Create a table of values for at least 4 points. Show your work.
step 2 Use the table of values to graph the line.

Answers

Answer:

As you can see from the table, for values of y=-2 for x=0, y=-1 for x=3, y==-3 for x=-3, and y=0 for x=6.

Plot these points on the coordinate plane and connect them with straight lines.

When a flash of lightning occurs, the number of seconds elapsed until thunder is heard can be used to approximate the distance from the storm. The graph models this situation. Which equation can be used to approximate the distance from a storm, y , in miles, given the number of seconds, x , that has elapsed from the moment that a flash of lightning is seen to the time thunder is heard?

Answers

Pretty sure its C :)
After you see a flash of lightning, count the number of seconds until you hear the thunder. (Use the stop watch or count "One-Mississippi, Two-Mississippi, Three-Mississippi," etc.) For every 5 seconds the storm is one mile away. Divide the number of seconds you count by 5 to get the number of miles.

It’s y=1/5x

Cross out the expression that doesn't belong.Explain your reasoning.
2/7+3/7

4/7-(-1/7)

8/7-3/7

10/7+(-3/7)

Answers

10/7+(-3/7). Every other express equals to 5/7, but 10/7+(-3/7)=1
10/7 + (-3/7) doesn’t belong because it equals to 1. Although, when solving the other expressions, they all equal 5/7.

I hope this helps !!

The first and second box choice's are Robert and Eileen.


And the Last box the answer choice's are 1.3, 2.7, 8.2, 28.9

Answers

Answer:

Robert bikes faster than Eileen by 1.3 mi/h

Step-by-step explanation:

first we have to find the mph rate

Robert: 9.5

Eileen: 8.2

Help my cousin Please because I'm busy

Answers

A. The answer is : 10%

B. The answer is : 4000
The answer is %10

fist you divide 100% of the pay check by 2 , that gives you 50 and then the 1/5, you do ride 50 by 5 that leaves you with 10

i need help pls asap

Answers

Answer:

Option C

Step-by-step explanation:

C: He has $30 on Monday

He deposits $30 on Friday

Amount left= 0

D won't be the answer because

Diver descends 25 feet

She then descends another 25 feet

Total length descended= 25+25= 50 feet

Answer:

C

Step-by-step explanation:

Withdrawal means minus 30 dollars, so right now she is -30 dollars. But depositing is positive, so 30 + (-30) is 0.

Blake ran three miles for his workout today. He ran the first mile in 7.2 minutes, the second mile in 7.35 minutes, and the third mile in 7.5 minutes. What was his total time for the three miles?


8.82 minutes

22.05 minutes

21.15 minutes

21.05 minutes

Answers

Answer:

22.05 minutes

Step-by-step explanation:

7.2 + 7.35 + 7.5 = 22.05 minutes

22.05 minutes

7 + 7 + 7 = 21
.2 can be rounded to .20 and .5 to .50
.20 + .35 + .50 = 1.05
21 + 1.05 = 22.05

Please help with this step by step and please do not do any links this is due today please answer all three and I will give you brainliest don't give a fake answer or you will not get brainliest and you will be reported at least try

Answers

Answer: Hi, this is hard to read!

Step-by-step explanation:

Referring to the Fig. in Question #26, approximate from the graph
the car's distance after it has traveled for 5 seconds.

Answers

its between 300 and 350

Please solve questions 6-9!! Whoever gets it right or answers first will get brainlest! PS, PLEASE SHOW WORK ON PAPER, PHONE ETC. !!

Answers

Answer:

6. 41634

7.  60214

8.  976336

6) 41,634
7) 60,214
8) 976,336
9) 166,002

Your beginning balance on your lunch account is $42. You buy lunch for $1.80 every day and sometimes buy a snack for $0.85. After 20 days, you have a balance of $0.05. How many snacks did you buy?

HELP

Answers

Explaination:

First your going to want to multiply the amount of days by how much money a school lunch costs:

1.80 x 20 = $36

The next step you will minus the amount spent by the beginning balance on your lunch account:

42 - 32 = $6

Then you will want to add the amount of money it costs for a snack untill it adds up high enough where it is close to the amount of money left (or you cant add any more):

0.85 + 0.85 + 0.85 + 0.85 + 0.85 + 0.85 + 0.85 = $5.95

You then count the times you added 0.85 which would be 7 times.

You can also multiply 0.85 by 7 to shorten it up:

0.85 x 7 = $5.95

This would leave $0.05 left.
______________________
Final answer:

After 20 days you would have 7 snacks total.


I hope this helps you out!

Identify an inequality that represents x (in inches).

Solve the inequality.
The solution of the inequality is .

Answers

Answer:

bro its 8 inchis

Step-by-step explanation:

write in word form: (8x3) ÷ 6

Answers

Answer:

eight time three divided by 6

Eight times three divided by 6

Lena baked 16 cookies with 2 scoops of flour. How many scoops of flour does Lena need in order to bake 32 cookies? Solve using unit rates.

Answers

You need to see what 16 can be multiplied by to get 32 which is 2. What you do to the bottom you do to the top therefore it is 4

Answer:

4

Step-by-step explanation:

Line segment CD is shown on a coordinate grid:

A coordinate plane is shown. Line segment CD has endpoints 1 comma 2 and 1 comma negative 1.
The line segment is reflected about the y-axis to form C′D′. Which statement describes C′D′?

C′D′ is perpendicular to CD.

C′D′ is half the length of CD.

C′D′ is greater than twice the length of CD.

C′D′ and CD are equal in length.

Answers

Answer:

im pretty sure the answer would be C'D' and CD would be equal in length!

Step-by-step explanation:

because you are only reflecting it across the y-axis, no changes will be made to the line itself, only the location of the line :)

C’D’ and CD are equal in length.

please help 20 POINTS

Answers

Exact Form:
35
9
35
9
Decimal Form:
3.
¯
8
Mixed Number Form:
3
8
9
The Answer in simplest form is 3. 8/9

Solve for ddd.
\dfrac32=5d-\dfrac12
2
3

=5d−
2
1

start fraction, 3, divided by, 2, end fraction, equals, 5, d, minus, start fraction, 1, divided by, 2, end fraction
from khan academy, brainliest if right

Answers

Answer:

[tex] \frac{3}{2} = 5d - \frac{1}{2} \\ \\ 5d = \frac{3}{2} + \frac{1}{2} \\ \\ 5d = \frac{3 + 1}{2} \\ \\ 5d = \frac{4}{2} \\ \\ 5d = 2 \\ \\ d = \frac{2}{5} \\ \\ d = 0.4[/tex]

I hope I helped you^_^

The value of d in the given expression is 2/5.

What is an expression?

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

We are given an expression as

3/2 = 5d - 1/2

we need to solve for d;

3/2 = 5d - 1/2

5d = 3/2 + 1/2

5d = 4/2

5d = 2

d = 2/5

Hence, the value of d in the given expression is 2/5.

To know more about an expression follow;

brainly.com/question/19876186

#SPJ2

What is the evaluation to 4-(2)^3=?

Answers

Answer:

-4

Step-by-step explanation:

4-(2)^3

2^3= 8

4-8=-4

ps don't click on links the bentley kid has been leaving the same ones everywhere be safe

Answer:

-4

Step-by-step explanation:

Well since this is evaluation the use of PEMDAS is important

4-(2)^3(first you do exponents)

4-8(since 2x2x2=8)

4 - 8=

-4

There you go! Hope it helped!

*FIRST ANSWER GETS BRAINLIEST* The triangle in Quadrant IV is the image of the triangle in Quadrant I after a counterclockwise rotation about the origin.What is the angle of rotation?
A.90°
B.180°
C.270°
D.360°

Answers

Answer:

C. 270°

Step-by-step explanation:

The transformation I saw was 90° clockwise but the question stated counterclockwise so that answer is C.

90° clockwise is same as 270° counterclockwise.

the angle of rotation is, C. 270°.

What is an angle?

In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle. The two rays are called the sides of an angle, and the common endpoint is called the vertex.

here, we have,

from given figure we get,

The transformation I saw was 90° clockwise but the question stated counterclockwise so that answer is C.

90° clockwise is same as 270° counterclockwise.

To learn more on angle click:

brainly.com/question/28451077

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GCF for 11q 55qr find the GCF of each pair of monomials

a.11 B. 11q

c 11r d 11qr

Answers

Answer:

b

Step-by-step explanation:

B the answer is b once again

Identify the y-intercept of the line: 5x - y = - 3

Answers

The y-intercept would be positive 3

Answer:

3

Step-by-step explanation:

rearange the equation so you have y is positive  3 + 5x = y

Multiply.

−3⋅7


−21

−11

11

21

Answers

Answer:

-21

Step-by-step explanation:

Since one number is negative and the other is positive, the product is negative and just multiply normally.

-21 because 3x7 is 21 so -3x7 would be -21

Henry buys a house for $669,500 including closing costs. The closing costs are 3%. What is the price of the house without closing costs?

Answers

Answer:

Step-by-step explanation:

Don't  know  been years  since i  did  percentages

Answer:

20,085 US$ that's the answer And sub to candy girl Drew on yt

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