3 years ago

Solve the system by the addition method.

Mathematics

2 answers:

spin [16.1K]3 years ago

7 0

The answer is the 2nd choice

Xelga [282]3 years ago

3 0

The answer is the 2nd circle

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Can someone please help me with this ?!!

bija089 [108]

Answer:

I believe the answer is B

Step-by-step explanation:

8 0

3 years ago

If one batch of play dough uses 1/8 cup of salt how many batches of Play-Doh could you make if you had 3 cups of salt?

Neporo4naja [7]

Answer:

3 / (1/8) = 24

Step-by-step explanation:

3 0

2 years ago

A line passes through the points (–1, –5) and (4, 5). The point (a, 1) is also on the line.

IgorC [24]

Answer:

a = 2

Step-by-step explanation:

Let's find the equation of the line using the 2 points given.

Let's call -1 as x_1 and -5 as y_1

also, 4 as x_2 and 5 as y_2

The equation of line is :

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

<em>Let's plug the points and get the equation of the line:</em>

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\y+5=\frac{5+5}{4+1}(x+1)\\y+5=2(x+1)\\y+5=2x+2\\y=2x-3$

Now, to find a, we substitute a in x and 1 in y of the equation of the line we just got:

$y=2x-3\\1=2(a)-3\\1=2a-3\\2a=4\\a=\frac{4}{2}=2$

4 0

3 years ago

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Given f(x) = 9x - 10, find f(8) *

Rama09 [41]

Answer:

$\huge\boxed{f(8) = 62}$

Step-by-step explanation:

$\sf f(x) = 9x-10\\\\Put\ x = 8\\\\f(8) = 9(8) -10\\\\f(8) = 72-10\\\\f(8) = 62\\\\\rule[225]{225}{2}$

Hope this helped!

<h2>~AnonymousHelper1807</h2>

3 0

3 years ago

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PLS HELP ASAP I REALLY NEED HELP!!!!

maks197457 [2]

Answer:

11 1/5

Step-by-step explanation:

3 1/2 + 2 57/60 + 4 3/4 =

3 30/60 + 2 57/60 + 4 45/60 =

9 132/60 = 1

1 12/60 =

11 1/5

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

7 0

2 years ago

Read 2 more answers