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pantera1 [17]
3 years ago
13

Help me with fractions. Please look at the picture before solving. Circle 1/5 of all the triangles. Mark X's on 2/3 of the trian

gles. There are 15 triangles by the way.

Mathematics
2 answers:
Irina-Kira [14]3 years ago
6 0
1/5 are 3 triangles
2/3 are 10 triangles
Amiraneli [1.4K]3 years ago
4 0
1/5 of the triangles is 3 triangles
2/3 of the triangle is 10
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If stratified random sampling with proportional allocation is used to select a sample of 25 high​ schools, how many would be sel
gregori [183]

Answer:

02 High Schools would be selected from the stratum with a​ percent-free-lunch value of 40 less than or equals x​.

Step-by-step explanation:

As the sample size needed is 25 and total schools are 100 so this indicate 1 school in each 4 schools is to be selected. This is given as

n=\frac{n_{total}}{n_{sample}}\\n=\frac{100}{25}\\n=4

Now as the schools with percent free lunch are 8 so now

n=\frac{n_{total}}{n_{sample}}\\n=\frac{8}{2}\\n=2

So only 2 schools will be selected in this regard.

7 0
3 years ago
You drive 150 miles in 3 hours before stopping for 30 minutes to have lunch and gas.  After lunch you travel 100 miles in an hou
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Average speed = total miles driven / total driving time
average speed = (150 + 100) / (3 + 1 1/2) =
                             250 / (4 1/2) =
                             250 / (9/2) =
                             250 * 2/9 =
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7 0
3 years ago
What is the inverse to 2^x-1
nydimaria [60]

Replace x with y and solve for y~

y=2*

x=2^y

log x = y log 2

y=log x / log 2

Hope this helps and leave a brainliest to help me reach expert ;)

4 0
3 years ago
You have a 10 by 24 piece of cardboard. You are going to cut squares of equal size from each corner, and fold up the sides to ma
densk [106]

Answer:

  10-2x

Step-by-step explanation:

If x is the length of one side of the square, the total width of the cardboard has two squares cut from it. The amount of width remaining is the width of the box. Since the original width of the cardboard is 10, the width of the box is ...

  10 -2x

8 0
3 years ago
How much interest would be earned on a $3,200 deposit at 3.5% for 1 year?
Fynjy0 [20]

Answer:

Hey there!

I=PRT

I=3200(0.035)(1)

I=112

The interest is 112 dollars.

Hope this helps :)

5 0
3 years ago
Read 2 more answers
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