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k0ka [10]
3 years ago
11

Please Help Fast!!!!!!!!!! First to answer gets Brainliest!!!!!!!!!!!!!!

Mathematics
1 answer:
ollegr [7]3 years ago
8 0

x=# of sandwiches

y=# of wraps

Equation- y=-3/4x+420

y-intercept-420

slope=-3/4

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Expressions that are equivalent to <br> –<br> 8(q+6).
Alona [7]

Answer:

q = -6

Step-by-step explanation:

8(q + 6)

= (8×q) (8×6)

= 8q + 48

8q = -48

q = -48/8

q = -6

8 0
3 years ago
mckenna and lara work for their uncle eddie, who repairs skateboards and bicycles. uncle eddie is leaving for a vacation to the
juin [17]

The <em><u>correct answer</u></em> is:

15 bicycles and 6 skateboards.

Explanation:

Let x represent the number of bicycles and y represent the number of skateboards.  The first equation in our system is then

x+y = 21, since there are 21 total items in the shop.

Each bicycle has 2 tires and each skateboard has 4; this gives us the equation

2x+4y=54 (because they are ordering 54 tires).

This makes our system

\left \{ {{x+y=21} \atop {2x+4y=54}} \right.

We will use elimination to solve this; we first need one of the variables to have the same coefficient in both equations.  We will make x the same, and we will do this by multiplying the first equation by 2:

\left \{ {{2(x+y=21)} \atop {2x+4y=54}} \right.  \\&#10;\\\left \{ {{2x+2y=42} \atop {2x+4y=54}} \right.

Now we will subtract the second equation from the first one:

\left \{ {{2x+2y=42} \atop {-(2x+4y=54)}} \right.  \\&#10;\\-2y=-12

Divide both sides by -2:

-2y/-2 = -12/-2

y = 6

There were 6 skateboards.  Substituting this into the first equation,

x+6 = 21

Subtract 6 from each side:

x+6-6 = 21-6

x = 15

There were 15 bicycles.

3 0
3 years ago
 
kirill115 [55]
<span>B. (1, –3)

</span><span>x – y = 4
8x + 2y = 2

1 - (-3) = 4
8(1) + 2(-3) = 
8 - 6 = 2
True

hope this helps</span>
7 0
3 years ago
Read 2 more answers
Find the area of the triangle 15 m and 34 m
slava [35]

Answer:

255m^2

Step-by-step explanation:

You multipliy 15 and 34. Then you divide by 2

5 0
3 years ago
If f(x) = 4x2 - 5x + 7 and g(x) = 3x2 - 2x + 8, find f(x) + g(x). A) 7x2 - 7x + 15 B) 7x4 - 7x2 + 15 C) 7x2 + 15 D) 12x4 - 8x3 +
lutik1710 [3]

Answer:

A) 7x^2-7x+15

Step-by-step explanation:

f(x) = 4x2 - 5x + 7,

g(x) = 3x2 - 2x + 8

f(x) +g(x) =

4x^2 - 5x + 7 + 3x^2 - 2x + 8=

7x^2-7x+15

8 0
3 years ago
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