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lara31 [8.8K]
3 years ago
12

How do you put -26/3 on a number line

Mathematics
1 answer:
earnstyle [38]3 years ago
5 0

U make a big number line

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If 27% of a number is 11.34, what is the number?
marishachu [46]
You times 11.34 by 27 the divide by 100 it should be 3.0618
4 0
3 years ago
Read 2 more answers
Phil and matt make cookies for a fundraiser at their school
Ivahew [28]
The equation would be y=0.45x.

Let x be the number of cookies Matt made.  Since Phil made 25% more, and 100%+25%=125%=125/100=1.25, the number of cookies Phil made can be represented by 1.25x.

Together the cookies they made are represented by x+1.25x=2.25x

Since there were 20% of the cookies remaining, this means they sold 100%-20%=80%=80/100=0.8 of the cookies:
0.8(2.25x) = 1.8x

Each cookie sold for 0.25, so we have
0.25(1.8x) = 0.45x

Letting y be the money they make, we have
0.45x=y
3 0
3 years ago
Find all sides of a right triangle whose perimeter is equal to 60 cm and its area is equal to 150 square cm
miskamm [114]

Answer:

15cm by 20cm by 25cm

Step-by-step explanation:

Let the sides of the right angle be x, y and h

x is the breadth

y is the height

h is the hypotenuse

Perimeter = x + y + h

x + y +h  = 60

x+y = 60-h .... 1

If its area is equal to 150 square cm, then;

Area = 1/2 * base * height

Area = 1/2 *x * y

xy/2 = 150

xy = 300 ....2

According to pythagoras theorem;

x² + y² = h²

On expanding x² + y²

x² + y² = (x+y)² - 2xy

The equation becomes

(x+y)² - 2xy = h² ... 3

Substitute equation 1 and 2 into 3;

From 3;

(x+y)² - 2xy = h² ... 3

(60-h)² - 2(300) = h²

3600-120h + h² - 600 = h²

3600-120h - 600 = 0

-120h = 600-3600

-120h = -3000

h = 3000/120

h = 25cm

Recall that x+y+h = 60

x+y+25 = 60

x+y = 60 - 25

x+y = 35 ... 4

From equation 2;

xy = 300

x = 300/y ..... 5

Substitute 5 into 4;

300/y + y = 35

(300+y²)/y = 35

300+y² = 35y

y²-35y + 300 = 0

y²-20y-15y + 300 = 0

y(y-20)-15(y-20) = 0

y-20 = 0 and y - 15 =0

y = 20 and 15

since x+y = 35

x + 20 = 35

x = 35 - 20

x = 15

Hence the sides of the triangle are 15cm by 20cm by 25cm

8 0
3 years ago
John bought a total of 12 bags of candy for Halloween.
Rzqust [24]

Answer:

John bought 2 Snickers bags and 10 Milky Way bags.

Step-by-step explanation:

Let x be number of Snickers bags. Let y be number of Milky Way bags.

Systems of Equations:

4x+5y=58

x+y=12

4x+5y=58

y=-x+12

4x+5(-x+12)=58

4x-5x+60=58

-x=-2

x=2

12-2=10

7 0
3 years ago
The volume of a cube is 27 cubic inches. What is the length of an edge? Explain.
Lilit [14]

Answer:

<h2>3 in</h2>

Step-by-step explanation:

The formula of a volume of a cube:

V=a^3

a - length of an edge

We have V = 27 in³. Substitute:

a^3=27\to a=\sqrt[3]{27}\\\\a=3\ in

7 0
3 years ago
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