3 years ago

PLZZ ZZ HELP WITH MATHHHHHH! I think it is the last one

Mathematics

1 answer:

Gnoma [55]3 years ago

4 0

The product of two rational numbers is always rational is false

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In Carisa's class, 28% of students bike to school. If 7 students bike to school, how many students are in the class?

bearhunter [10]

Do a proportion. 28/100= 7/x. Now cross multiply and divide. 7 x 100=700 and 700 divided by 28 is 25. There are 25 students in the class. Answer is 25

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2 years ago

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Karolina [17]

Do you mind writing out the equation/question deal-o it might help us all some.

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3 years ago

2/3w - 1/4 = 2/3(w - 1/4)

Rufina [12.5K]

<u>Answer:</u>

No solution

<u>Step-by-step solution:</u>

We are given an expression:

$\frac{2}{3} w-\frac{1}{4} =\frac{2}{3} (w-\frac{1}{4} )$

We have only one variable $w$ so we will make $w$ the subject and solve for it.

$\frac{2}{3} w-\frac{1}{4} =\frac{2}{3} (w-\frac{1}{4} )$

Solving the brackets first to get:

$\frac{2}{3} w -\frac{1}{4} =\frac{2}{3} -\frac{1}{6}$

Taking LCM on both sides to get:

$\frac{8w-3}{12} =\frac{4w-3}{6}$

By cross multiplication:

$6(8w-3)=12(4w-3)$

$48w-18 = 48w -36$

$48w - 49w -18 + 36 = 0$

$w$ gets cancelled so we are left with $18\neq 0$

Therefore, $w$ has no solution.

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3 years ago

Angela has 3 pounds of ground beef in her freezer.she uses 3/4 of a pound for spaghetti and meatballs.how much ground beef is le

dalvyx [7]

Answer:5

Step-by-step explanation:

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3 years ago

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Burka [1]

1/10 + 1/6 = 4/15
4/15 is the answer

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2 years ago

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