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4 years ago

Brainliest & points! i need help with math asap, show work too if possible :)

Mathematics

1 answer:

qwelly [4]4 years ago

4 0

Answer:

I think the answer is x is 16 and y is 20? I could be wrong tho

Step-by-step explanation:

First, subtract -7 from -1 to get 8.

Then, add the 12 and you get 16 for x.

First, subtract 7y from 9x to get 2y

Then, add 4 to get 20 for y.

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a highway bride is anchored yo the ground by a right triangle. how long is the embankment labeled x? ground your answer to the n

Nadya [2.5K]

Answer:

Step-by-step explanation:

It should say a "highway bridge." No bride should be anchored to the ground.

x² = 1.5² + 6.8² = 48.49

x = √48.49 ≅ 7 units

8 0

3 years ago

I will appreciate if you answer this problem,thanks

aliya0001 [1]

Answer:

None

Step-by-step explanation:

By graphing out the both line segments through graphing software, segments AB and CD have no intersections on the co-ordinate plane.

I've attached a screenshot of what i graphed out.

3 0

3 years ago

Doris made 80 cookies this week. She baked 4 less than three times the total she made last week. Which equation, when solved for

sertanlavr [38]

Answer:

The equation is $3x-4=80$

The value of x is 28 cookies

Step-by-step explanation:

Let

x ----> the number of cookies she baked last week

we know that

The number of cookies she baked last week multiplied by 3 minus 4 must be equal to 80 cookies

The linear equation that represent this situation is

$3x-4=80$

solve for x

$3x=80+4\\3x=84\\x=28\ cookies$

3 0

3 years ago

Consider the functions f(x) = 2x - 3 and g(x) = 6 + 8/x. Solve for f(g(4))

ExtremeBDS [4]

Answer:

Step-by-step explanation:

Given the equations f(x) = 2x - 3 and g(x) = 6 + 8/x.

We want to find f(g(4))

Essentially, what we are doing, is plugging in 4 into x for g(x) and the outcome of that is what we plug into x for f(x)

So first lets plug in 4 into x for g(x)

g(x) = 6 + 8/x.

We want to find g(4)

g(4) = 6 + 8/4

First divide 8 by 4

g(4) = 6 + 2

Then add 6 and 2

g(4) = 8

Now that we have found g(4) we want to plug the value of g(4), so 8 into f(x)

f(x) = 2x - 3

we want to find f(8)

f(8) = 2(8) - 3

* multiply 2 and 8 *

f(8) = 16 - 3

* subtract 3 from 16 *

f(8) = 13

and we are done!

So we can conclude that f(g(4)) = 13

5 0

3 years ago

A 30% acid solution was mixed with a 10% acid solution. The result was 600g of a 15% solution. How much of each solution was use

AlexFokin [52]

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3 0

3 years ago