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eduard
3 years ago
8

How do I solve this

Mathematics
2 answers:
GrogVix [38]3 years ago
6 0
The awnser is (-1, 3)
kirza4 [7]3 years ago
4 0

Answer:

x = -1 y = 3

Step-by-step explanation:

x = 2y-7

2x + 3y = 7

Substitute x =2y-7 in 2y + 3y = 7

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

4y-14+3y = 7

7y - 14 = 7

7y = 7 + 14

7y = 21

7y/7 = 21/7

y = 3

Substitute 3 for y in x = 2y-7

x = 2(3) - 7

x = 6 -7

x = -1

Answered by Gauthmath

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What improper fraction equal to the mix number 4 7/9?
Marianna [84]

Answer:

43/9

Step-by-step explanation:

Step 1

Multiply the denominator by the whole number

9 × 4 = 36

Step 2

Add the answer from Step 1 to the numerator

36 + 7 = 43

Step 3

Write answer from Step 2 over the denominator

43/9

=439

3 0
4 years ago
What​ polynomial, when divided by 7y^3, yields 3y^2-4y+7 as a quotient?
weqwewe [10]

Answer: 21y^5-28y^4+49y^3

If the remainder isn't necessarily zero, we add C_1y^2+C_2y+C_3, which covers all possible remainders when dividing by a polynomial with leading term in y^3.


Step-by-step explanation:

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

21y^5-28y^4+49y^3

7 0
3 years ago
Give the slope and y-intercept of each line whose equation is given. f(x) = 3/4 x - 2 Question options:
aev [14]
The slope is always m and y-int always b in a y=mx+b equation.
So: m= 3/4 and b= -2
4 0
4 years ago
A store sells 2 1/2 pounds of shrimp for $18. What is the unit price of the shrimp? Explain Plz
krok68 [10]
2 1/2 pounds = $18
for 1 pound = How many dollars

1 pound = $18 ÷ 2 1 /2
= 18 ÷ 2.5
= $ 7.2

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price of 1 gram = 7.2 / 453.6 = $ 0.0158
4 0
4 years ago
Write the phrase "the product of 19 and a number" as a mathematical expression.
Sedbober [7]

Answer:

Phrase : "the product of 19 and a number"

Mathematical expression : 19A

Step-by-step explanation:

Phrase : "the product of 19 and a number"  

The product of two numbers a and b can be written as a x b =ab

<u>To find Mathematical expression </u>

Let A be a number,  

The product of number with 19 can be written as

19 x A  = 19A

Therefore the given phrase "the product of 19 and a number" as a mathematical expression =19A

7 0
3 years ago
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