Ask question

Ask question

All categories

3 years ago

8

I need help with them Please some one help

1 answer:

Aleksandr [31]3 years ago

6 0

8 / 32 x 100 = 25%
answer: 25% students went on a trip

30/60 x 100 = 50%
answer: he spent 50% of his money

40 - 10 = 30 candies after gave away 10

10/40 x 100 = 25%
answer: 25% of candies she gave away

book 300 pages
she read 75 pages
75/300 x 100 = 25%

answer: she read 25% of the book

You might be interested in

X2 + 4x - 21 = 0 quadratic formula

Elena-2011 [213]

Answer:

0

Step-by-step explanation:

x2 +4x-21=0. solve for x

$x = \frac{7}{2}$

$x = 3 \frac{1}{2} \ x = 3.5$

6 0

3 years ago

In the figure, triangle CAE is an enlargement of triangle CBD with scale factor of 4/3. The area of the smaller triangle is 9cm2

balandron [24]

Answer:

16 cm^2

Step-by-step explanation:

Given

$\triangle CAE$ -- Bigger Triangle

$\triangle CBD$ -- Smaller Triangle

$k = \frac{4}{3}$ --- Scale factor

Area of CBD = 9

Required

Determine the area of CAE

The area of triangle CBD is:

$A_1 = \frac{1}{2}bh$

$\frac{1}{2}bh = 9$

The area of CAE is:

$A_2 = \frac{1}{2}BH$

Where:

$B = \frac{4}{3}b$ and

$H = \frac{4}{3}h$

The above values is the dimension of the larger triangle (after dilation).

So, we have:

$A_2 = \frac{1}{2}*\frac{4}{3}b * \frac{4}{3} * h$

$A_2 = \frac{1}{2}*\frac{4}{3} * \frac{4}{3} *b* h$

$A_2 = \frac{1}{2}*\frac{16}{9} *b* h$

Re-order

$A_2 = \frac{16}{9}*\frac{1}{2}* b* h$

$A_2 = \frac{16}{9}*\frac{1}{2}bh$

Recall that:

$\frac{1}{2}bh = 9$

$A_2 = \frac{16}{9}*9$

$A_2 = 16$

Hence, the area is 16 cm^2

3 0

3 years ago

Desert, tundra, ice, and mountains make up 24% of Earth's surface. Which fraction is equivalent to 24%?

crimeas [40]

Answer:

6/25

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

What does it mean for a fraction to be in simplest form?

DerKrebs [107]

A fraction is in it's simplest form if both of the numerator and denominator are not divisible by a number.

8 0

3 years ago

The Burger Palace serves 17,822 items in 7 days. 12,460 of those items are burgers and the rest are hot dogs. If they sell the s

Brums [2.3K]

answer:

a. 16.

step-by-step explanation:

32 = 2*2*2*2*2

48 = 2*2*2*2*3

picking out the common factors:

gcf = 2*2*2*2 = 16.

6 0

3 years ago