Answer: Let the 2 numbers be x and
sum of two numbers is 28....Eq 1: x + y = 28
sum of 6 times the 1st number and 3 times the 2nd number is 105....Eq 2: 6x + 3y = 105
Rearrange Eq 1 to solve for x.
x + y = 28
x = 28 - y --> Substitute into Eq 2, you get
6(28 - y) + 3y = 105
168 - 6y + 3y = 105
-3y = -63
y = -63 / -3 = 21
Now solve for x using Eq 1.
x = 28 - y = 28 - 21 = 7
hope it helped
Step-by-step explanation:
Perform the indicated operations. Reduce your answer to it's lowest term.
Step-by-step explanation:
15 1/2+ 3/4=16 1/4
to add fractions what you want to do is this:
so you want them as the same denominator, a way to do this is multiply one denominator with another (ex, 2 in 1/2. you want to multiply 4 with 2 which equals 8 and 2 with 3. this together equals 6/8. do the same thing with 1/2. 1×4=4 2×4=8. 4/8)
so, whats 4/8 and 6/8? just adding it like usual, it'll be 10/8, or 1 2/8.
15+1 2/8=16 2/8
16 2/8 simplified (just divide by 2 until you make it to where you cant anymore)
16 1/4
do the same with the other adding ones.
23 1/6+8 3/4=23 11/12
15 2/5+ 2 2/6= 17 11/15
now, do the same way as showed before but except subtract.
9/10 - 3/5 = 15/50
7 3/4 - 5 5/8 = 1/8
20 5/8= 1/8
The resting heart rate of an adult is usually about 60 beats per minute. Complete the chart below and be sure to include comma for thousands.
Minutes Heartbeats
1 60
5 300
10 [blank]
50 [blank]
100 [blank]
500 [blank]
1,000 [blank]
5,000 [blank]
10,000 [blank]
( 25 point's !!!!!)
Answer:
heart rate for adults ranges from 60 to 100 beats per minute genuinely a lower heart rate is at rest implies more efficient heart functions and better cardiovascular fitness
Step-by-step explanation:
a well-trained athlete might have a normal resting heart rate closer to 60 beats per minute
(I really do hope this helps)
12/13+(-1/13 complete the expressions to find the sum or difference..
Answer:
11/13
Step-by-step explanation:
[tex]\frac{12}{13}+ (-\frac{1}{13} )[/tex] [tex]\frac{12}{13} - \frac{1}{13}[/tex] [tex]\frac{11}{13}[/tex]The product of a rational and irretional number is always, sometime, or never rational.
Answer:
Step-by-step explanation:
The product of a rational number and an irrational number is SOMETIMES irrational." If you multiply any irrational number by the rational number zero, the result will be zero, which is rational. Any other situation, however, of a rational times an irrational will be irrational.
if 3x - 6 = 15 than what is x
Answer:
3x-6=15
3x=15+6
3x=21
x=21/3
x=7
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
Answer:
x = 7
Step-by-step explanation:
Step 1: Add 6 to both sides.
[tex]3x - 6 + 6 = 15 + 6[/tex] [tex]3x = 21[/tex]Step 2: Divide both sides by 3.
[tex]\frac{3x}{3} = \frac{21}{3}[/tex] [tex]x = 7[/tex]Step 3: Plug in the value to see if it's correct.
[tex]3(7) - 6 = 15[/tex] [tex]21 - 6 = 15[/tex] [tex]15 = 15[/tex]Therefore, x = 7.
mrs.price purchases 24 tickets for the students in her class. evaluate the expression t=24 please help I'm stuck and I don't know much
Answer:
t(28-8)= , (28-8)
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
just subtract whats in the parenthesis (28 - 8) and its 20
Use the figure to find the measures of the numbered angle.
Answer:
angle 1 = 61°
angle 2 = 119°
angle 3 = 61°
angle 4 = 119°
angle 5 = 119°
angle 6 = 61°
angle 7 = 119°
Step-by-step explanation:
angle 1 = 61° (corresponding angles are always equal)
angle 1 + angle 2 = 180° (linear pair)
=> 61° + angle 2 = 180°
=> angle 2 = 180° - 61° = 119°
angle 2 = 119
angle 1 = angle 3 = 61° (vertically opposite angles are equal)
angle 2 = angle 4 = 119° (vertically opposite angle are equal)
angle 4 = angle 5 = 119° (interior opposite angles are equal)
angle 6 = 61° (vertically opposite angles are equal)
angle 5 = angle 7 = 119° (vertically opposite angles are equal)
Hope it helps :)
How much will it cost to fill a 50 L gas tank
at $1.33 per liter?
Answer:
$66.50.
Step-by-step explanation:
50 L · $1.33/L = $66.50
Becky has 30 T-shirts in a drawer: 12 concert shirts, 8 team shirts, and 10 plain shirts. Of
the 10 shirts she randomly selects to give to charity, 3 are concert shirts. How does this
frequency compare to the expected frequency based on the probability of randomly
selecting a concert T-shirt?
Answer:
The chance of her selecting a Cocert shirt are 12/30 which means therw is more probability she would choose at least one and the least probability to choose a Team sirt since the odds are 8/30 so it is expected she would select 4 concert shirts not 3, at lest for me.
C: Joe is a waiter.
Last night he made
$37 in fips and
makes $8.50 per
hour. How much did
he make after his 8
hour shift?
Answer:
8x8.5 +37
68+37 = 105
$105 dollars for an 8 hour shift
$68 salary + $37 tips = $105
Answer:
total wage in 8 hrs = $105
Step-by-step explanation:
37 + (8 * 85) = 37 + 68 = $105 we simply do the maths without decimal then place on the 10's =(8 * 85) = 680 = $68 then add the $37 = $105
Karla is making fresh grape jelly. She buys 18.7 pounds of grapes.
Estimate the total cost. $2.78(18.7)
Karla will spend about___on grapes.
1. $19
2. $36
3. $40
4. $60
Answer:
60
Step-by-step explanation:
read answer from list below this question
In a recent pizza contest, ryan ate 1 3/8, adrian ate 1 2/3, alejandro ate 1 4/5
Answer:
what is the question?
Step-by-step explanation:
please help me
Hamish buvs a new car for $20000
The car depreciates in value by 19% each year.
Work out the value of the car at the end of 3 years.
Give your answer to the nearest $
Answer:
The correct answer is $10,629
Step-by-step explanation:
Here is how I got it!
First, you will have to borrow the 20,000 from the word problem.
Next, multiply 20,000 with 0.81 with the power of 3
[tex]20,000*0.81^3=n[/tex]
The 3 is the number of years, n is the nearest $ answer.
--
First, do [tex]0.81^3[/tex]
[tex]0.81*0.81*0.81=0.531441[/tex]
(Wow, that's a crazy number!)
--
With 0.531441, multiply it with 20,000
[tex]20,000*0.531441=10628.82[/tex]
10,628.82 is technically (in money) $10,628.82 (with .82 being eighty-two cents).
--
Finally, it states to answer to the nearest $.
Just round up the .82 to 1 dollar which will just add one more dollar to 10,628
[tex]10,628[/tex] ⇒ [tex]10,629[/tex]
Add you $ symbol
With the result being: $10,629
Answer:
$10629
Step-by-step explanation:
First you have to work otu the percentage decrease:
100 - 19 = 81
81/100 = 0.81 (/ means divide)
Then you have to work the amount after 3 years:
Long Method
20000 x 0.81 = 16200
16200 x 0.81 = 13122
13122 x 0.81 = 10628.82
or Short Method
20000 x 0.81³ = 10628.82
Finally you round it to the nearest $:
10628.82 ⇒ 10629
PLEASE HELP ME
The figure below shows two pair of congruent triangles. ΔROB ≅ _____ ΔPTA ΔATP ΔPAT ΔAPT
commission expense is budgeted to be $16,000 at a planned sales level of 4,000 units. if only 2,900 units are sold, how much commission expense will appear on the flexible budget, and is the activity variance favorable or unfavorable?
The amount of commission expense that will appear on the flexible budget if 2900 units were sold is; $11600
The activity variance is favourable.
According to the question;
The budgeted commission expenses is to be $16,000 at a planned sales level of 4,000 units.However, only 2900 units are sold.To solve this;
We must be aware that the commission expense is directly proportional to the number of units sold.
In essence;
$16,000 is expected at 4,000 units of sale.Therefore, $x is expected at 2,900 units of sale.By cross product;
x = (2900 × 16000)/4000x = $11,600Ultimately, the activity variance is favourable bas less commission expense is recorded for less sale.
Read more;
https://brainly.com/question/24487497
Need answers with explanation
Step-by-step explanation:
i guess it helps..if yuh need step by step explanation.comment i try to explain in worda
PLEASE HELP WITH THIS ONE QUESTION
In a square kilometer of corn fields, there are about 100,000 plants. About how many plants will Mr. Jimenez have to trample to create the center of the maze?
Answer:
1767
Step-by-step explanation:
(4m-5)°
(3m+3)
Solve for m
4m-5+3m+3=180
COMBINE LIKE TERMS
4m-2+3m=180
7m-2=180
move integers to the other side
180+2=182
182/7=26
m=26
Amy wants to make 20 cupcakes. She knows 3 cups sugar makes 2 cupcakes. How many cups of sugar will she need
Answer:
30
Step-by-step explanation:
(20/2)x3
pls help i give brainless
Answer:
1. 11 AM
2. 10:30 AM
Step-by-step explanation:
Answer:
Number 5 she started at 11:00 am
number 6 she started at 10:30 am
Step-by-step explanation:
:)
What is the value of the expression 2 to the third power plus 3 over 5 times 5 over 9 minus 4 plus 3.?
What kind of angles are 4 and 5
What is the value of the underlined digit in 249.15?
There is a way to solve this.
2 - Hundredths
4- Tens
9 - Ones
( Beyond the decimal point)
1- Tens
5- Hundredths
Answer:
depends on which digit is underlined!
Step-by-step explanation:
if the digit 2 is underlined, the value would be hundreds
if the digit 4 is underlined, the value would be tens
if the digit 9 is underlined, the value would be ones
if the digit 1 is underlined, the value would be tenths
if the digit 5 is underlined, the value would be hundredths
Find the measure of angles 1, 2, and 3
Answer:
angle one is 90
angle two is 115
angle 3 is 65
Step-by-step explanation:
There are 16 boys and 18 girls in a grade 6 math class . write the ratio of girls to boys in words as simply as possible
Answer:
8:9 = eight to nine
Step-by-step explanation:
16:18 - divide each by 2 in order to simplify
= 8:9
An engine in a model rocket can cause the rocket to accelerate from 0 m/s to 238 m/s in 1.2 seconds. What is the acceleration of the rocket?
Answer:
Step-by-step explanation:
acceleration = change of velocity / time
= 238/1.2
= 198.3 m/s/s.
1
What is the solution to the equation
=
X+ 3
?
2x4
x = -3
x = -3 and x = 0
ооо
x = 0 and x = 3
O x= 3
Answer:
X+3 = 3x
2x4 = 8
_3x
check out the remaining answer
A soccer team is having a car wash. The team spent $50 on supplies. They earned $300, including tips. The team's profit is the amount the team made after paying for supplies. Use a sum of integers to find the team's profit. The team's profit was $
Answer:the answer is $ f(x) = 3x + 50
f(22) = 3(22) + 50
f(22) = 66 + 50
f(22) = 116
So, he will make $116.
As an ordered pair, the solution is (22, 116).Step-by-step explanation:
Profit =Money left after supplies
[tex]\\ \sf\longmapsto Profit=300-50[/tex]
[tex]\\ \sf\longmapsto Profit=\$250[/tex]
bro i need this
(x − 5)^2 = x^2 − 25
Answer:
x=5
Step-by-step explanation:
x^2+25-10x = x^2-25
-x^2 -x^2
25-10x = -25
-25 -25
-10x = -50
x=5
lets check
(5-5)^2 = 5^2-25
0^2 = 25-25
0 = 0
Answer:
x = 5
Step-by-step explanation:
(x - 5)^2 = (x - 5) (x - 5) =
x^2 -10x + 25 = x^2 - 25
x^2 - x^2 - 10x + 25 = - 25 (x^2 - x^2 = 0)
- 10x + 25 = - 25
- 10x = - 25 - 25
x = - 50/- 10
x = 5
-5g - 6 for g =2
please help
A:4
b:16
C:10
D: -13
Answer:
-16
Step-by-step explanation:
-5g - 6
-5(2) - 6
-10 - 6
-10 + (-6)
-16
