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4 years ago

How many lunches and sodas can you buy for $100 if a soda costs $2 and lunch costs $7?

1 answer:

7 0

Let
soda=x
lunch=y

2x+7y=100

change to slope intercept form

y=-(2/7)x+14

answer is shaded region on thr graph of the equation.

x =1
y=14

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What is the solution to the square root of 3x-6 equals 3

Crazy boy [7]

Answer:

x=12

Step-by-step explanation:

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3 years ago

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The second one (B)

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3 years ago

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2x – 1+ 3x=1+ 2x - 5<br> I need the steps

Anettt [7]

Answer:

x = -5/3

Step-by-step explanation:

Combine like terms: 2x + 3x = 5x - 1 (on the left) -6 + 2x (on the right) (5x - 1 = -6 + 2x)

Get X on one side: Isolate +2x by subtracting 2x on both sides (5x - 2x = 3x) (3x - 1 = -6) Isolate -1 by subtracting 1 on both sides (3x = -5) Isolate 3x by dividing 3 on both sides.

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3 years ago

What is the perimeter of the figure

anastassius [24]

Answer:

Option A.

$P=73.4\ units$

Step-by-step explanation:

see the attached figure with letters to better understand the problem

In this problem we have a triangle with a circle inscribed in it

$A.F=A.B\\C.B=C.D\\E.F=E.D$

step 1

Find the length side B.C

$C.B=A.C-A.B$

substitute the given values

$C.B=23-14=9\ units$

step 2

Find the length side C.D

Remember that

$C.D=C.B$

therefore

$C.D=9\ units$

step 3

Find the length side E.D

we know that

$E.D=E.C-C.D$

substitute the given values

$E.D=22.7-9=13.7\ units$

step 4

Find the length side E.F

Remember that

$E.F=E.D$

therefore

$E.F=13.7\ units$

step 5

Find the length side A.F

Remember that

$A.F=A.B$

therefore

$A.F=14\ units$

step 6

Find the perimeter

$P=23+22.7+13.7+14$

$P=73.4\ units$

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3 years ago

One-third of a number is 12<br> Work out one-half of the number

marshall27 [118]

If 1/3 = 12, then multiply 12 by 3 to get the number, which is 36

then split 36 in half, and you get 18.

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3 years ago

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