3 years ago

99 in./s = mi/day Converting rates for 7th grade math can’t seem to figure it out

Mathematics

1 answer:

Alexxx [7]3 years ago

6 0

I think the answer is A. Hope this helps!

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11 3 - 50 ml = A 2.41 B 2.91 C 3.351 D 3.451

julsineya [31]

Es número c por qué esa es la respuesta

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4 years ago

How many 10 digits numbers have no two digits the same and do not start with 0 or 1?

Sever21 [200]

Answer:

at least 99

Step-by-step explanation:

each number starting from 2 can be moved 11 times per thing.

4 0

3 years ago

Need help please can you give answer with working out i can not answer as it is quite gard

Elis [28]

Step-by-step explanation:

$\text{Given:}\\\\AB=3x-4\\AC=2x+12\\BC=7x-2\\AB:AC=1:2\Rightarrow(3x-4):(2x+12)=1:2\\\\\dfrac{3x-4}{2x+12}=\dfrac{1}{2}\qquad\text{cross multiply}\\\\(3x-4)(2)=(2x+12)(1)\qquad\text{use the distributive property}\\\\(3x)(2)+(-4)(2)=2x+12\\\\6x-8=2x+12\qquad\text{add 8 to both sides}\\\\6x-8+8=2x+12+8\\\\6x=2x+20\qquad\text{subtract}\ 2x\ \text{from both sides}\\\\6x-2x=2x-2x+20\\\\4x=20\qquad\text{divide both sides by 4}\\\\\dfrac{4x}{4}=\dfrac{20}{4}\\\\x=5$

$\text{Put the value of}\ x\ \text{to}\ AC\ \text{and}\ BC:\\\\AC=2(5)+12=10+12=22\\\\BC=7(5)-2=35-2=33\\\\AC:BC=22:33=\dfrac{22}{33}=\dfrac{22:11}{33:11}=\dfrac{2}{3}=2:3$

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3 years ago

1.424 as a mixed fraction

RoseWind [281]

1 53/125 one and fifty three over one hundred and twenty five

3 0

3 years ago

Show the correct steps to simplify this problem.

KengaRu [80]

Do 12-5 then 6.4 then 2.2 then whatever answer you get for 12-5 multiply it by the answer you get for 6.4 then subtract whatever answer you get for 2.2 hope this helps!

7 0

3 years ago