I need help with this substitution problem

Answer:

z = 150

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

6-4=2

200/100=2

i think

Answer:

12 12 12 12 12 12 12 12 12 1 2 12 12

Answer:

x > 5

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

Range is solved by subtracting the lowest and highest numbers which int his case is 70 and 89 so that make 19

Answer:

y= -1x

Step-by-step explanation:

Answer:

1)  x intercept-> 24

y intercept-> -6

2) slope-> 1/4x

3) i posted the screenshot in the description

4) -20 cups-   -1 dollar

(20*.25)-6

-30 cups- 1.5

-40 cups- 4 dollars

5)- $1 -> 4

$10->40

$100-> 400

Step-by-step explanation:

hope this helps!

Answer:

1/15

Step-by-step explanation:

Ms. Fox loves to eat cereal and she notices that she only has 1/3 of the box of cereal left. If she spread that amount across 5 days, how much cereal will she have for each day?

The amount of cereal she would have per day is calculated as:

5 days = 1/3 of the box

1 day = x

Cross Multiply

5 days × x = 1 day × 1/3 of the box

x = 1/3 ÷ 5

x = 1/3 × 1/5

x = 1/15 of the box

Answer:

Before Tax Price: $40.00

Sale Tax: 8.00% or $3.20

After Tax Price: $43.20

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

Answer:

x=-1

Step-by-step explanation:

plug in -1 to equation

3(-1)-13=-2(9+(-1))

-3-13=-2(-8)

-16=-16

it checks.

Answer:

28=x

Step-by-step explanation:

2/5=x/70

(70/1)(2/5)=x/70(70/1)

here you cancel 70 into 5 to get 14 and on the other side cancel both the 70s

14*2=x

28=x

Answer:

28

Step-by-step explanation:

multiply 2 * 70 then divide by 5

Answer:

thats sucks

Step-by-step explanation:

Answer:

D:4

Step-by-step explanation:

12(4)-5=5(4)+23

43=43

Hope this helps

Answer:

392.35

Step-by-step explanation:

35% + 35% is 70 % so 133 +133 is 70 % witch is 269.

next we need to figure out 30 percent and they give us 35 % so. you add to zeros to 30 because percentage is out of 100 and there are 2 zeros in 100. so it look like this

3000 ÷ 133 = 22.56 is 30% of 133

70% + 30% = 100%

269 + 22.56= 291.56 is your answer

Answer:

Step-by-step explanation:

A rotation is a transformation in a plane that turns every point of a figure through a specified angle and direction about a fixed point. The fixed point is called the center of rotation. The amount of rotation is called the angle of rotation and it is measured in degrees.

Therefore, the fixed point is called the center of rotation.

What are the angles?

Angles are formed when two lines intersect at a point. The measure of the 'opening' between these two rays is called an 'angle'.

A rotation means that the transformation in a plane that turns every point of a figure through a specified angle and direction about a fixed point.

So,the fixed point is called the center of rotation. The amount of rotation is called the angle of rotation and it is measured in degrees.

Hence, the fixed point is called the center of rotation. The amount of rotation is called the angle of rotation and it is measured in degrees.

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Answer:

angle N is 79, angle K is 22, angle P is 81, angle D is 76

Step-by-step explanation:

all of the angles should add up to 180 degrees so add the two angles you have and subtract them from 180

Answer:

KGH is similar

Step-by-step explanation:

using the triangle sum theorem

Answer:

Step-by-step explanation:

Perimeter formula:

Given

Substitute l in perimeter formula and solve for w:

Maximum width is 19 feet and the length is 19 + 12 = 31 feet. In this case all fencing will be used.

With l = 31 and w = 19, the area is:

Answer:

A = 31*19 = 589 square feet:

Answer:

10 kg water, 2 kg of sugar.....total of 12 kg of syrup

percentage of sugar is : 2/12 = 0.166 rounds to 0.17 = 17%

Step-by-step explanation:

Answer:

x=62

Step-by-step explanation:

152-90(because of the right angle)

the 28 is a red herring

Answer: B.   4x + 17 = 23

Step-by-step explanation:

There are 4 x's, a 17, and it shows that the total is 23.

4 x's = 4 × x = 4x

4x + 17 = 23

Hope I helped!

Answer:

Answer would be B.

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

there are 5 piles

dividing 100% by 5 gets 20%

some piles have less than 50 in it, so my answer would be D

Hope this helps, but I would wait for one more answer. I'm not quite sure about mine, but I think D would the most likely.

Let me know if it's wrong!

Answer:

20% of 24cm=20/100×24=4.8cm

Answer:

4.8cm

Step-by-step explanation:

24x20%=20×0.20=4.8cm

Mac must get 90 on the eighth exam to raise his average to 80%.

The average is calculated as the product of all values divided by all possible values. It can also be described as mean. The mean in statistics is the average value for the particular sample or collection of data. It is determined by dividing the total number of observations by the total number of observations.

Given:

Mac has taken seven math exams this year.

His average mark is 78%.

Let x be the required score.

To find the mark to raise his average to 80%:

According to the question,

78(7) + x  = 8(80)

546 + x = 640

x = 640 - 546

x = 90

Therefore, the required mark is 90.

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Answer:

your answer would be 450