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3 years ago

Y = 2x + 4 2x - y = -6

Mathematics

1 answer:

Stella [2.4K]3 years ago

7 0

no solution b/c

2x-2x+4= -6

0+4= -6

4= -6

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Evaluate: .25 (1.2 x 3 - 1.25) + 3.45

iragen [17]

The order to us solve is:

Parentheses
Multiplication
Sum and subtraction

Let's go:

$25(1.2\times 3 - 1.25) + 3.45\\25(3.6-1.25)+3.45\\25\times 2.35 + 3.45\\58.75+3.45\\62.2$

Therefore, the result is 62.2.

7 0

3 years ago

Read 2 more answers

Evaluate n+2x2 when n=3 and x=−2.

krok68 [10]

Answer:

When n=3 and x=−2 the answer is 11.

Step-by-step explanation:

Given:

Let p (n,x) be the function such that

$p (n,x) = n + 2x^{2}$

To Find:

p (n,x) = p ( 3, -2) = ?

Solution:

$p (n,x) = n + 2x^{2}$

Substituting n = 3 and x = -2 we get

$p (3, -2) = 3 + 2(-2)^{2}$

Negative square gives positive number therefore (-2)²=4

$p (3, -2) = 3 + 2\times 4$

$p (3, -2) = 3 + 8\\p (3, -2) = 11$

When n=3 and x=−2 the answer is 11.

7 0

3 years ago

Matthew makes 5 apple pies for every 3 blueberry pies last week Matthew made 15 blueberry pies how many apple pies did he make

KIM [24]

Answer:

Step-by-step explanation:

5:3

3*5=15

This means that 5 apple pies times 5.

5*5=25

<u>25</u>:15

3 0

4 years ago

Orlando is measuring the angles of a triangle. He measures the first two angles and gets 30° and 70°. What should be the measure

Andrei [34K]

The answer will be B because all three angles of the triangles add up to180 degrees, and we already know the total of two other angles are 100 degrees, which made the unknown angles have 80 degrees. Hope it help!

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3 years ago

Read 2 more answers

Answer if you want, 10 points

rjkz [21]

Answer:

Step-by-step explanation:

for example

$\frac{8}{4} = 2 \\ \\ 1 \times \frac{4}{5} = \frac{9}{5}$

in the second one you should multiple 5 and 1 then add 4

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3 years ago