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Usimov [2.4K]
3 years ago
13

Best estimate for 89% of 152?

Mathematics
1 answer:
Karolina [17]3 years ago
6 0
<span>135.28 should be it is that all the probm</span>
You might be interested in
-2 (x) = -2 ( x-14) ​
nata0808 [166]

Answer:

There are no solutions.

Step-by-step explanation:

−2x=−2(x−14)

-2x=(−2)(x)+(−2)(−14)

-2x=−2x+28

-2x+2x=−2x+28+2x

0= 28

5 0
3 years ago
This is 22 points
AURORKA [14]
Let the initial number of girls be x, this represents 40% of the dancers.
Total number of dancers will therefore be:
100/40*x=2.5x
When 15 more girls joined, the new number of girls was:
x+15 this represents the total percentage of 52%. The new number of dancers became:
2.5x+15:
therefore the new percentage of girls can be expressed as follows:
(new number of girls)/(new number of dancers)×100
(x+15)/(2.5x+15)×100=52
(x+15)/(2.5x+15)=0.52
x+15=0.52(2.5x+15)
x+15=1.3x+7.8
15-7.8=1.3x-x
7.2=0.3x
x=7.2/0.3=24
The number of students after additional number of girls will be:
2.5x+15
=2.5×24+15
=60+15
=75 students

4 0
3 years ago
Read 2 more answers
Help please b and d is simplify each of the following expressions 2. A b c and d is expand and simplify
WINSTONCH [101]
2 is C and  4 is A hope this helps

5 0
3 years ago
Fractions: Multiplying mixed (a whole number with a fraction) numbers
creativ13 [48]
<span>You must change the whole number into an improper fraction. Just for an example, if you were told to solve 5 x 1/5, you must make 5 an improper fraction, which is 5/1. Then you just multiply the fractions to get 1.

My answer is similar to the one above!! Sorry!!</span>
7 0
3 years ago
If one of the diagonals of a rectangle is 20cm and the difference between the length and the width is 4cm. What is the area of t
Phoenix [80]

Answer:

<em>192cm²</em>

Step-by-step explanation:

The diagonal of the rectangle is expressed using the formula:

d = √l²+w²

l is the length

w is the width

Given d = 20

20 = √l²+w²

400 = l²+w² .... 1

Since the difference between the length and the width is 4cm, then;

l - w = 4 ... 2

l = 4 + w

Substitute equation 2 into 1;

400 = (4+w)²+w²

400 = 16 +8w + w² +w²

400 = 16 + 8w + 2w²

2w²+8w - 384 = 0

w²+4w - 192 = 0

w = -4±√4²-4(-192)/2

w = -4±√16+768/2

w = -4±28/2

w = -4+28/2

w = 24/2

w = 12

Since l = w+4

l = 12+4

l = 16

Area of the rectangle = 16 * 12

<em>Area of the rectangle = 192cm²</em>

3 0
3 years ago
Read 2 more answers
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