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3 years ago

What is 9+1 O.o plssssss help its in my 7th grade math question

Mathematics

1 answer:

jonny [76]3 years ago

5 0

Answer:

3738

Step-by-step explanation:

hhsheududidififofofpfofoffg

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What is the simplified form of the following expression?

Anna71 [15]

Answer:

Step-by-stes 32 p explanation:

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3 years ago

In the figure, △ABC is similar to △DEF. what is m∠1

Nady [450]

Answer:

C. 139°

Step-by-step explanation:

Given:

m<A = 62°

m<B = 77°

Required:

Find m<1

Solution:

Since ∆ABC is similar to ∆DEF, therefore:

<A ≅ <D, which means m<D = 62°

<B ≅ <E, which means m<E = 77°

<C ≅ <F

Therefore, based on exterior angle theorem:

m<1 = m<D + m<E

m<1 = 62° + 77° (substitution)

m<1 = 139°

7 0

3 years ago

Your third-grade classroom has 32 boys and girls. Two-thirds of the boys and three-fourths of the girls are going on a field tri

adelina 88 [10]

Answer: The ratio of boys to girls would be 3 : 5 .

Step-by-step explanation:

Since we have given that

Number of boys and girls = 32

Fraction of boys are going on a field trip = $\dfrac{2}{3}$

Fraction of girls are going on a field trip = $\dfrac{3}{4}$

Number of children left = 9

Let the number of boys be 'b'.

Let the number of girls be 'g'.

According to question, it becomes ,

$b+g=32------------(1)\\\\32-9=\dfrac{2}{3}b+\dfrac{3}{4}g\\\\23=\dfrac{2b}{3}+\dfrac{3g}{4}-------------(2)$

From eq(1), we get that g = 32-b

So, it becomes,

$\dfrac{2}{3}b+\dfrac{3}{4}(32-b)=23\\\\\dfrac{2}{3}b+24-\dfrac{3}{4}b=23\\\\\dfrac{2}{3}b-\dfrac{3}{4}b=23-24=-1\\\\\dfrac{8b-9b}{12}=-1\\\\\dfrac{-b}{12}=-1\\\\b=-1\times -12\\\\b=12$

so, number of girls would be 32 - b = 32 - 12 = 20

So, Ratio of boys to girls in class would be 12 : 20 = 3 : 5.

Therefore, the ratio of boys to girls would be 3 : 5 .

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4 years ago

Of the 18 people who have signed up for a genetics lecture, 8 have hazel eyes. What is the experimental probability that the nex

Gekata [30.6K]

Answer:

The experimental probability is 80%.

Step-by-step explanation:

Since approximately when there is a group of people, almost always half have the eyes of one color.

8 0

3 years ago

Read 2 more answers

When 4x+8y = 24 and y=5, what's the value of x?

ankoles [38]

Answer:

x=10

hope that help!!!!

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3 years ago