Y=2x-20
y=-x+34 it is a substitution method

Answers

Answer 1

Answer: I will help you do it the correct way.

To solve by substitution, you must cancel out either x or y.
We will choose x, as -x and 2x are easier to change and cancel.
We multiply the second equation by 2 to make -x -2x, the opposite of 2x in the first equation.

y=-x+34
2(y = -x + 34)
2y = -2x + 78

We add the equations together.

y = = 2x - 20
2y = -2x + 68

y + 2y = 2x - 2x + 68 - 20
Combine like terms
3y = 48

isolate y

3y = 48
/3 /3
y = 16

Now we substitute 16 in for y in an original equation.
Let's choose the first equation.

Y=2x-20
16 = 2x - 20
Isolate x

16 = 2x - 20
+20 +20

36 = 2x
/2 /2
18 = x

x = 18
y = 16

The solution is (18, 16)

To check, substitute both into both equations and see whether or not the equation is true. (you can surely do this on your own)

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6% of it is 27
I need help. Someone please give me a explanation of how to do this.

Answers

Answer:

You take 6% of a number and the resulting number is 27.

To do this you need to change the percent into a fraction.

6% = 6/100

This is the number you need to multiply to the number you need to find, A.

6/100 A = 27

Solve for x

6 A = 27x100

A= 2700/6

A = 450

Check your answer:

6/100 (A) = 27

6/100 (450) = 27

(6x450) /100 = 27

2700 / 100 = 27

27 = 27

Step-by-step explanation:

What is 0.6 divided by 0.0024?

Answers

When you divide 0.6 by 0.0024 you get 250.

250 is your answer for your question

Skylar makes turkey sandwiches for a family reunion he purchases 5 lbs. 4 oz. of sliced turkey for $26.88 what is the unit cost per ounce for turkey skylar purchased

Answers

Answer:

$0.32

Step-by-step explanation:

The first step is to convert pounds to ounces.

1 lbs = 16 oz

so:

5 lbs = 5(16) ounces

5 lbs = 80 oz

Skylar bought 5 pounds and 4 ounces, and we already found that 5 pounds is 80 ounces, so she bought a total of

80oz + 4oz = 84 oz.

The price for these 84 ounces was $ 26.88, to find the unit cost per ounce of turkey, we divided the total cost by the amount of ounces:

$26.88 ÷ 84 = $0.32

the cost per ounce is $0.32

Help im confused pls help!

Answers

You would round the numbers to 830 and 20 and divide, that’d be 41.5, that’s your estimate. Then divide 828 and 23, that’d be 36. That’s your answer. Oh and to check your answer, 23 times 36=828

The recipe for Jack's Famous Chili uses 222 teaspoons (\text{t})(t)left parenthesis, t, right parenthesis of red hot chili powder for each cup (\text{c})(c)left parenthesis, c, right parenthesis of tomato sauce.His rival, Marsha, claims her chili is spicier. She makes chili in large quantities, and uses the chart below.
Whose chili is spicier?
Chili powder (\text{t})(t)left parenthesis, t, right parenthesis Tomato sauce (\text{c})(c)left parenthesis, c, right parenthesis
444 3.53.53, point, 5
888 7.07.07, point, 0
121212 10.510.510, point, 5
Choose 1 answer:
Choose 1 answer:

(Choice A)
A
Jack's

(Choice B)
B
Marsha's

(Choice C)
C
They are equally spicy.

Answers

Jacks!!!!!!!! Would be correct!!!!

Final answer:

The spiciness of chili is determined by comparing the proportion of chili powder to tomato sauce. Jack consistently uses 222 teaspoons of chili powder per cup of sauce, whereas Marsha's ratio varies, but never exceeds 126.86 teaspoons per cup. Therefore, Jack's chili is spicier.

Explanation:

To determine whose chili is spicier, we must compare the ratio of chili powder to tomato sauce used by Jack and Marsha. Jack uses 222 teaspoons of chili powder for every 1 cup of tomato sauce. For Marsha, we'll have to establish the ratios based on her table.

When Marsha uses 444 teaspoons of chili powder, she uses 3.5 cups of tomato sauce. So, her ratio for this batch is 444/3.5 = 126.86 teaspoons of chili powder per cup of sauce.
When Marsha uses 888 teaspoons her ratio is 888/7 = 126.86 teaspoons per cup.
When she uses 1212 teaspoons, her ratio is 1212/10.5 = 115.43 teaspoons per cup.

Regardless of the quantity she makes, Marsha's ratio never goes below 115.43, which is less than Jack's ratio of 222. So, Jack's chili is spicier than Marsha's.

Learn more about Ratio Comparison here:

brainly.com/question/33450121

#SPJ11

Please answer ASAP! An explanation is a MUST REQUIREMENT in order to receive points and the Brainliest answer. Thank you.

Answers

that's it,hope this help.

First convert everything into an improper fraction.
7 1/2=15/2
4 1/2= 9/2
5 1/8= 41/8
Now do what is in parentheses
2 and 8 share 8 as their LCD
9/2=36/8
36/8-41/8=-5/8
Now divide.
(15/2)/(-5/8)
(15/2)*(-8/5)
15*-8=-120
5*2=10
-120/10
Now simplify
Divide both by 10
-120/10=-12
10/10=1
-12 is your answer!

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