All categories

3 years ago

the 7th grade has 207 students. there are 23 more girls than boys in the grade. how many boys are in the 7th grade

Mathematics

2 answers:

Stella [2.4K]3 years ago

5 0

Answer:

42 boys

Step-by-step explanation:

Represent the number of boys with 'b' and that of girls with 'b + 23.'

Then b + (b + 23) = 207.

Simplifying, we get 2b = 84, so that b is 42. There are 42 boys and

(42 + 23) girls, or 65 girls.

valkas [14]3 years ago

4 0

Answer:

92 boys

Step-by-step explanation:

I hope this helps! Have a lovely day!! :)

You might be interested in

Which list shows fraction that ALWAYS result in a terminating decimal for values of n > 0? A) 1/11, 1/121, 1/1331 . . . , 1/1

Alla [95]

Answer:

B) 1/10, 1/100, 1/1000 . . . , 1/10n

Step-by-step explanation:

Comparing all the options given:

A) 1/11, 1/121, 1/1331 . . . , 1/11n

Finding the decimal of the first term,

1/11 = 0.0909090 (never ending decimal place)

B) 1/10, 1/100, 1/1000 . . . , 1/10n

Finding the decimal of the first term,

1/10 = 0.01 (ended decimal place)

C) 1/6, 1/36, 1/126 . . . , 1/6n

Finding the decimal of the first term,

1/6 = 0.16666667 (never ending decimal place)

D) 1/3, 1/9, 1/27 . . . , 1/3n

Finding the decimal of the first term,

1/3 = 0.33333333 (never ending decimal place)

7 0

3 years ago

Read 2 more answers

Perform the indicated operation. (y4 - 1) ÷ (y + 1)

olya-2409 [2.1K]

Factorize the numerator as a difference of squares:

$y^4-1=(y^2-1)(y^2+1)=(y-1)(y+1)(y^2+1)$

Then if $y\neq-1$ , the $y+1$ factors will cancel:

$\dfrac{y^4-1}{y+1}=(y-1)(y^2+1)=y^3-y^2+y-1$

so the answer is B.

8 0

3 years ago

Read 2 more answers

Dylan was saving to buy a video game console that cost $249. He already saved $60 and plans to save $22 per week. After how many

natka813 [3]

At 9 weeks he would have enough money to buy the video console.

3 0

3 years ago

Area of a triangle8ft 4 1/2ft

n200080 [17]

8 x 4.5 = 36
36/2 = 18

3 0

3 years ago

A gray wolf's sperm contains

Anna [14]

Answer:

<em>The resulting zygote will have 78 chromosomes.</em>

Step-by-step explanation:

The sperm and eggs are the sex cells of animals. These cells contain half the number of chromosomes compared to the number of chromosomes present in the somatic cell of that particular organism.

When the sperm and the egg cell unite to form a zygote, the 39 chromosomes in the wolf's sperm and the 39 chromosomes in the female wolf's egg will add up to male 78 chromosomes in the zygote.

4 0

3 years ago