Answer:
13.5 lb/in^2
Step-by-step explanation:
8ft = 3.6 lb
30ft= ?
8ft÷30ft = 3.75
this means 8ft goes into 30ft 3.75 times
3.6lb× 3.75=13.5lb/in^2
you times the pressure of 8ft by 3.75 to find how much pressure there is at 30ft
Is (2,3), a solution to the system of equation x2 + y2 = 13 and 2x - y=4?
True
False
find the values of x and y
[tex]\:\:\:\:\:\:\:\:\:\:\therefore\bf{x=3\:and\:y=1}[/tex]
Solution
[tex]\:\:\:\bf{(2^{x+y},\:3^{x-y})=(16,9)}[/tex]
[tex]\sf{Here,}[/tex]
[tex]\:\:\:\star\tt{\:\:2^{x+y}=16\:and\:3^{x-y}=9}[/tex]
[tex]\sf{Solving,}[/tex]
[tex]\:\:\:\implies\tt{\:\:2^{x+y}=16}[/tex]
[tex]\:\:\:\implies\tt{\:\:2^{x+y}=2^4}[/tex]
[tex]\:\:\:\implies\tt{\:\:x+y=4}[/tex]
[tex]\:\:\:\bf{\:\:x=4-y-----(i)}[/tex]
[tex]\sf{Solving,}[/tex]
[tex]\:\:\:\implies\tt{\:\:3^{x-y}=9}[/tex]
[tex]\:\:\:\implies\tt{\:\:3^{x-y}=3^2}[/tex]
[tex]\:\:\:\bf{\:\:x-y=2-----(ii)}[/tex]
[tex]\sf{Putting\:the\:value\:of\:(i)\:in\:(ii),}[/tex]
[tex]\:\:\:\implies\tt{\:\:4-y-y=2}[/tex]
[tex]\:\:\:\implies\tt{\:\:4-2y=2}[/tex]
[tex]\:\:\:\implies\tt{\:\:-2y=2-4}[/tex]
[tex]\:\:\:\implies\tt{\:\:\cancel{-}2y=\cancel{-}2}[/tex]
[tex]\:\:\:\implies\tt{\:\:y=\frac{\cancel{2}}{\cancel{2}}}[/tex]
[tex]\:\:\:\bf{\:\:y = 1}[/tex]
[tex]\sf{Putting\:y = 1\:in\:(i),}[/tex]
[tex]\:\:\:\implies\tt{\:\:x=4-1}[/tex]
[tex]\:\:\:\bf{\:\:x = 3}[/tex]
[tex]\:\:[/tex]
Chloe paid $21.18 for a large pizza including tax and delivery fees. She gave the delivery person
$25 and told the delivery person to keep the change. Did she give the delivery person a 20% tip?
Explain.
Answer:
No, she tipped about 18%.
Step-by-step explanation:
How much she tipped:
$25 - $21.18 = $3.82
To find the percentage, you can put this tip over the what she paid for the pizza.
[tex]\frac{3.82}{21.18} =0.18=18%[/tex]%
She only tipped about 18%
x-16=9(2x+3)-9 find x
Answer:
x= -2
TO MUCH STEPS
What is b^2 x a^1 x e^1 ?
Answer:
b²ae
Step-by-step explanation:
I need help please been getting all the answers wrong
Answer:Question? :c
Step-by-step explanation:
Answer:
what's the problem?
ma'am/Sir
Solve the system of equations without graphing. Show your reasoning.
2y=x−4
4x+3y=5
[tex]\displaystyle \begin{cases} 2y=x-4 \\4x+3y=5 \end{cases } \Rightarrow \ominus \left \{ {{x-4=2y} \ | \cdot 4 \atop {4x+3y=5}} \right. \Rightarrow \\\\\\ 4x-16-4x-3y=8y-5 \\\\ -3y-16=8y-5 \\\\ -3y-8y=16-5 \\\\-11y=11 \\\\ y=-1 \ \ ; \ \ x=2y+4=2 \\\\ \rm Answer : \ (2 \ ; \ -1 )[/tex]
5. How does the number line below represent the product of a
positive number and a negative number? Explain.
Please Help The attachment is attached Below ⬇
Answer:
Sorry I can't give you a straight answer right now because I'm in a hurry but here is some help;
Step-by-step explanation:
Remember:
When adding positive numbers, count to the right. When adding negative numbers, count to the left. Add when two of the same signs appear next to each otherHEEEEEEEEELP PLZZZZZZZZZZ
Answer:
Step-by-step explanation:
(1). ( - 3, - 1 )
(2). ( - 1, 3 )
(3). ( 2, 0 )
(4). ( 1, 0 )
Drew and Danielle are sightseeing for the day. Between the two of them they take 118 pictures. If Drew takes 14 more than three times as many pictures as Danielle, how many pictures for each friend take?
Answer:
Drew = 92 pictures, Danielle = 26 pictures
Step-by-step explanation:
Amount of pictures Drew has = x
Amount of pictures Danielle has = y
First make a system of equations:
x + y = 118
x = 3y + 14
Then solve with substitution:
(3y + 14) + y = 118
4y = 104
y = 26
x + 26 = 118
x = 92
How do you solve 32÷1440 using long division?
Answer:
720 that i got answer but i´ll explain it soon
Step-by-step explanation:
There are a total of 84 campers attending a summer camp. The ratio of boys to girls is 4 to 3.
How many girls are attending the summer camp?
Enter your answer in the box.
If p is true and q is false, what is the truth value of p or q?
1
0
true
false
Answer:
1 is the answer.............
Factor the polynomial x^2 + 4x + 4
A card is drawn from a 52-card deck, the result is written down, and then the deck is shuffled. A card is drawn. What is the probability that at least one of the two cards was red? Write your answer as a percent
Answer:
1/2 or 50%
Step-by-step explanation
Answer:
75%
Step-by-step explanation:
To find probability of one being red, do 1 minus probability of being black.
1/2*1/2=1/4
1-1/4=3/4
=75%
Help help help please
Answer:
hey there,
<5=130°because of transversal line
Solve for brainlist ( you can take your time )
Answer:
Slope for...:
7: 1
8: -2
9: 12/0
10: 4/3
11: 2/-7
12: 0/4
13: -1/3
14: 5/9
15: 1/4
Hope this helps!
Use the distributive property to write an expression that is equivalent to 8(7+ X).
56+ 8x
8+ 7x
56+ x
7 + X= 1/8
Answer:
56 + 8x
Step-by-step explanation:
8(7) + 8(x)
= 56 + 8x
Translate into an inequality
A number w increased by 8 is at most -23
1) less than 2) greater than 3) less/equal to 4)greater/equal to
Answer:
w + 8 ≥ -23
Step-by-step explanation:
A)
The car accelerates for 10 seconds
B)
The car moved forward at a constant speed for 6 seconds before moving
backwards
The car accelerated for 6 seconds and continued at a constant speed
D)
The car moved forward at a constant speed for 6 seconds and then stopped
moving suddenly
Answer:
C The car accelerated for 6 seconds and continued at a constant speed
what number will get you 21.51
Answer:
10.755
Step-by-step explanation:
10.755+10.755=21.51
Answer:
Step-by-step explanation:
a few examples
21 + 0.51
22 - 0.49
10.75 × 2
4.637^2
43.02 ÷ 2
etc....
A recipe for 10 bran muffins calls for 1 cup of flour. The number of muffins that can be made varies directly with the amount of flour used. There are 3 1/2 cups of flour available. How many muffins can be made?
Answer:
35
Step-by-step explanation:
3 1/2 x 10 =35
make 3 1/2 into an improper fraction: 3 x 2 + 1 = 7/2
make 10 into a fraction: 10/1
find the LCD (least common denominator) for each number:
10/1 = 20/2
7/2 = 7/2
20/2 x 7/2 = 70/2 = 35
:)
Answer:
35
Step-by-step explanation:
For 1 cup of flour, you make 10 muffins. Just by reading the problem, you see that the number of muffins, 10, is 10 times the number of cups of flour, 1.
For 3 1/2 cups of flour, you make 10 times that number muffins.
3 1/2 × 10 = 3.5 × 10 = 35
Answer: 35 muffins
You can also use a proportion.
1 cup flour is to 10 muffins as 3.5 cups flour is to x muffins.
1/10 = 3.5/x
Cross multiply:
1 × x = 10 × 3.5
x = 35
Answer: 35 muffins
The pet boarder keeps a dog to cat ratio of 5:2. If the boarder has room for 98 animals, then how many of then can be dogs?
On the last algebra test M students scored x on the test and N students
scored y. What does the following expression represent?
Mc+Ny
M+N
Answer: Y=35x
Step-by-step explanation:
Answer:
Step-by-step explanation:
Mx + Ny represents the total score of M + N students.
I need help pls help me
Simplify (−8.5)(−5)( −2). (1 point)
Select one:
a.
850
b.
85
c.
−85
d.
−850
Answer:
C). -85 is correct answer
Step-by-step explanation:
This is a multiplication problem, so we can just multiply from left to right:
-8.5 x -5 = 42.5
42.5 x -2 = -85 (negative 85)
(Hope this helps can I pls have brainlist (crown)☺️)
A recipe called for the ratio of sugar to flour to be 8 : 7.If you used 48 ounce of sugar, how many ounces of flour would you need to use?
Answer:
42 ounces of flour
Step-by-step explanation:
8 - 48
7 - x
When you cross multiply, you get:
8x = 7*48
8x = 336
x = 336/8
x = 42
Feel free to mark this as brainliest! :D
For BRAINILY please help
Answer:
z=55 degree
Step-by-step explanation:
because the sides are equal let say the numbers x
2x+70=180
2x=180-70
2x=110
x=55
branlist please
i need help. i am so confused
Answer:
a/2=3
We simplify the equation to the form, which is simple to understand
a/2=3
We move all terms containing a to the left and all other terms to the right.
+ 0.5a=+3
We simplify left and right side of the equation.
+ 0.5a=+3
We divide both sides of the equation by 0.5 to get a.
a=6
3b- 4/2 = c , for b
please explain the steps
Answer:
b = c/3 + 2/3
Step-by-step explanation:
3b - 4/2 = c
the goal is to have b all by itself on one side of the equals sign.
start by moving the fraction over to where c is by adding.
3b = c + 4/2
adding -4/2 and +4/2 together makes it a 0 on the b side so there's no need to write anything in that space anymore.
Now 3b are next to each other which means they are multiplying. To move 3 we need to do the opposite (divide by 3 on both sides of the equal sign)
b = c/3 + 2/3
notice I divided both c and 4/2 by 3. 4/2 = 2 so I changed it to 2, then divided by 3
