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SVETLANKA909090 [29]
3 years ago
13

twice a number plus three times another number equals 4. three times the first number plus four times the other number is 7. wha

t are the numbers?
Mathematics
1 answer:
Drupady [299]3 years ago
5 0

Answer:

x=5, y=-2. (5, -2).

Step-by-step explanation:

2x+3y=4

3x+4y=7

----------------

3(2x+3y)=3(4)

-2(3x+4y)=-2(7)

----------------------

6x+9y=12

-6x-8y=-14

-----------------

y=-2

2x+3(-2)=4

2x-6=4

2x=4+6

2x=10

x=10/2

x=5

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Write an algebraic equation based on the description. Two angles form a linear pair. The measure of one angle is 24° more than t
IgorC [24]
<h2><u>Answer:-</u></h2>

Given:

Two angles form a linear pair.

It means sum of their measures = 180°.

And,

Measure of one angle is 24° greater than the other.

Let the other angle be x.

→ First angle = (x + 24)

According to the question,

<h3>→ x + x + 24 = 180</h3>

→ 2x = 180 - 24

→ 2x = 156

→ x = 156/2

<h3>→ X = 78°</h3>

<u>There</u><u>fore</u><u>,</u>

  • 1st angle = 78°
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4 0
3 years ago
Write an equation to model the total cost,y, for x pounds of blueberries.
zaharov [31]

Given:

Customers can pick their own blueberries at Blueberry Hill. They pay $5 to enter the patch and $4 per pound for the blueberries they pick.

Required:

We have to write an equation to model the given expression.

Explanation:

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Since, Given to enter the patch customers pay $5 (fixed)

and Given the customers pay $4 per pound for the blueberries they pick so for x pounds of blueberries cost 4x

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Thus, Option (a) is correct.

Answer

Thus, Option (a) is correct.

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The perimeter of a rectangle is given by the formula below P=2(I+w)
inna [77]

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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