3 years ago

Solve this system with substitution: 2x - 5y = 22 x + 5y = -4

Mathematics

1 answer:

Artyom0805 [142]3 years ago

6 0

So the coordinate points is (6,-2)

You might be interested in

Suppose a car uses 30 gallons of gasoline for a trip of 500 miles. How many gallons would be used on a trip of 300 miles?

Brilliant_brown [7]

18 gallons per 300 miles

8 0

3 years ago

Read 2 more answers

What is the best estimate for the length of a real baseball bat?

ollegr [7]

29 inches, read it off the bottom of a child's baseball bat

8 0

4 years ago

Read 2 more answers

Can anyone help me with this. It asks to solve and check your answer.

Katarina [22]

4m -21 = 3(5m - 1)
4m - 21 = 15m - 3
15m - 4m = -21 + 3
11m = -18
m = -18/11

To check:
LHS → 4 (-18/11) -21 = - 303/11
RHS → 3( 5(-18/11) - 1) = -303/11
LHS = RHS (The answer is right)

8 0

3 years ago

...<br> Are these fractions equivalent or nonequivalent?<br> 1/11 2/22

djyliett [7]

Answer:

equivalent

Step-by-step explanation:

is you divide both 2 and 22 by 2... you get 1/11

4 0

3 years ago

Read 2 more answers

Addie walked 2 1/2 miles in 45 minutes. Suzie covered 2 2/5 miles in 2/3 of an hour.

N76 [4]

Answer:

Suzie's speed was 3.6 mph

Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

Let

s ----> the speed in mph (miles per hour)

x ----> the distance in miles

y ----> the time in hours

$s=\frac{x}{y}$

Find Suzie's speed

we have

$x=2\frac{2}{5}\ mi$

$y=\frac{2}{3}\ h$

substitute

$s=2\frac{2}{5}:\frac{2}{3}$

Convert mixed number to an improper fraction

$2\frac{2}{5}=2+\frac{2}{5}=\frac{2*5+2}{5}=\frac{12}{5}$

substitute

$s=\frac{12}{5}:\frac{2}{3}=\frac{36}{10}=3.6\ mph$

3 0

3 years ago