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lyudmila [28]
3 years ago
10

System OT W + b =13 6.5w + 2b = 57.5

Mathematics
1 answer:
mixer [17]3 years ago
6 0

Answer:   w = 7,  x = 6

Step-by-step explanation:  Solve by substitution

W + b = 13

rewrite as   b = 13 - w  and substitute that value for b in the second equation

6.5w + 2b = 57.5  Then solve for w

6.5w + 2(13-w) = 57.5 . Distribute

6.5w + 26 - 2w = 57.5 .  Subtract 26 from both sides. Combine like terms and simplify

6.5w - 2w = 57.5 - 26

4.5w = 31.5  Divide both sides by 4.65

w = 7 . Substitute 7 for w in the first equation and solve for b

7 + b = 13 . Subtract 7 from both sides

b = 6

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3 years ago
5. A meteorologist measured the average rainfall received in cities A and
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Answer:

2.75 inches

Step-by-step explanation:

  • City A received x  inches of rain.

City B experienced three times the amount of rainfall than  City A, therefore :

  • City B received 3x inches of rain.

Since both cities received 11 inches of rainfall in total.

We have that:

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3 years ago
A performer in a circus is fired from a cannon as a ``human cannonball'' and leaves the cannon with a speed of 16.4 m/s. The per
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3 years ago
I need help with this question for math: "There are 5,280 feet in a mile. What part of a mile, in decimal form, will you drive u
monitta

Answer: About 0.1894 of a mile will be driven until you reach the exit 1000 feet if there are 5280 feet in a mile.

Units are used to describe the quantity of an object.

Given the conversion rate:

5280 feet = 1 mile

Next is to convert 1000feet to miles, we can write:

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Step-by-step explanation:

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3 years ago
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Mariana [72]
<span>I answered your question.</span>


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