7th grade math help me pleaseeee

Mathematics

1 answer:

Natalka [10]3 years ago

5 0

Answer:

1507 as my perception

You might be interested in

anthony tedesco sold his bike and accessories for $315. if he received 8 times as money for the bike as he did for the accessori

Oksanka [162]

Answer:

$280 for the bike

Step-by-step explanation:

If the relative values were ...

bike : accessories = 8 : 1

Then the ratio of the bike to the whole amount is ...

bike : total sale = 8 : (8+1) = 8 : 9

That is, the money Tedesco received for the bike is 8/9 of the total he received:

bike money = (8/9)×$315 = $280

5 0

3 years ago

9.21 <br><img src="https://tex.z-dn.net/?f=9.21%20%5Cdiv%200.4%20%3D%20" id="TexFormula1" title="9.21 \div 0.4 = " alt="9.21 \di

Whitepunk [10]

Let us do it by converting the 0.4 to a fraction, it has one decimal, so we'll use one zero at the denominator.

and 9.21 to a fraction as well, two decimals, thus two zeros at the denominator then,

$\bf 9.21\div 0.4\\\\
-------------------------------\\\\
0.\underline{4}\implies \cfrac{04}{1\underline{0}}\implies \cfrac{4}{10}\implies \cfrac{2}{5}\qquad \qquad \qquad \qquad 9.\underline{21}\implies \cfrac{921}{1\underline{00}}\\\\
-------------------------------\\\\
9.21\div 0.4\implies \cfrac{921}{100}\div \cfrac{2}{5}\implies \cfrac{921}{100}\cdot \cfrac{5}{2}\implies \cfrac{921}{20}\cdot \cfrac{1}{2}\implies \cfrac{921}{40}
\\\\\\
23\frac{1}{40}\implies 23.025$

3 0

4 years ago

GEOMETRY PLZ HELP

Cerrena [4.2K]

Answer:

Option B is true

Step-by-step explanation:

We are given that three right triangles .Triangles ABD,CAD and CBA are similar.

When two triangles are similar then, the corresponding sidea are in equal proportion.

We have AB=5 units

AC= 7 units

BC=x