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vredina [299]
3 years ago
7

20pts Solve for x (4(x-5))/8=9y

Mathematics
2 answers:
pav-90 [236]3 years ago
6 0

Answer:

x=18y+5

Step-by-step explanation:

HACTEHA [7]3 years ago
5 0

Answer:

x = 5 + 18y

Step-by-step explanation:

Equation: <em>\frac{4(x - 5)}{8} = 9y</em>

Multiply and distribute: 4x - 20 = 72y

Add: 4x = 20 + 72y

Divide: x = 5 + 18y

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At 6:00 p.m. the temperature was –5°F outside. By midnight the temperature had dropped 12 degrees. What was the temperature at m
USPshnik [31]
-5 - 12 = -17

Starts at -5 degrees, then it drops another 12, so you subtract 12 from -5.
6 0
3 years ago
Read 2 more answers
Find the surface area of the pyramid shown to the nearest whole number.
Snezhnost [94]

Answer:

<h3>The answer is option A</h3>

Step-by-step explanation:

Surface area of a pyramid =

area of base + area of triangular faces

Since it's a square based pyramid

It's surface area is

area of base + 4( area of one triangular face)

Since the square has equal sides

<u>For square base </u>

Area of a square = l²

where l is the length

From the question l = 5

So we have

Area of square base = 5² = 25ft²

<u>For one of the triangular face</u>

Area of a triangle = ½ × base × height

base = 5

height = 6

Area = ½ × 5 × 6 = 15ft²

So the surface area of the pyramid is

25 + 4(15)

= 25 + 60

We have the final answer as

<h3>Surface area = 85 ft²</h3>

Hope this helps you

7 0
2 years ago
PLEASE HELP THIS IS THE LAST QUESTION AND I WANT TO GO TO BED. PLEASE EXPLAIN SO I CAN DO IT FOR NEXT TIME AS WELL
rewona [7]
15+70+45=130 :)) that’s how u calculate the perimeter just add them all together.
7 0
3 years ago
Which statements best describe the dot plot or box plot? Check all that apply
Sveta_85 [38]

Answer:

<h2>The box plot is the only display that can be used to show the variability of the data.</h2><h2>The median appears clearly on the box plot at the line within the box: 10.</h2>

Step-by-step explanation:

When we want to represent variability, we use a box plot instead of a dot plot, because the box plot allow us to observe the range of the data set, that is, the minium and the maximum value.

Remember that variability is about the spread of the dataset, and the range is a measure that can give a pretty good idea of it, shown by a box plot.

Therefore, the last hoice is correct.

On the other hand, according to the dot plot, the median is 10, because there are 13 total values, where the central value is 10.

Therefore, the second choice is correct.

3 0
3 years ago
Solve mathematics problem in photo please!
laila [671]
Hello,

8/(x-7)=7/2
==>(x-7)*7=8*2
==>7x-49=16
==>7x=65
==> x =9+2/7

Answser A
8 0
3 years ago
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