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3 years ago

Bob buys eggs and potatoes at a store

Mathematics

2 answers:

Anna007 [38]3 years ago

5 0

Answer:

A. x= (25.92 - 2.57) ÷ 5

Step-by-step explanation:

If you were to do (25.92 - 2.57) you get 23.35.

Then you must do 23.35 ÷ 5 and you get 4.67.

If you want to confirm the answer just do it all backward like

4.67 x 5 = 23.35

23.35 + 2.57 = 25.92

Hope this helped :)

Savatey [412]3 years ago

4 0

Answer:

Each potato cost $4.67

Step-by-step explanation:

$25.92-$2.57=$23.35

$23.35/5 =$4.67

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bija089 [108]

Answer:

B.The exponent of the solution is –12, the difference of the original exponents.

C.The coefficient of the solution must be greater than or equal to one but less than 10.

D.The quotient is 3.0 × $10^{-12}$

Step-by-step explanation:

We are finding the quotient of the expression below in scientific notation

$\dfrac{9.6X10^{-8}}{3.2X10^4} \\=\dfrac{9.6}{3.2}X10^{-8-4}\\ =3 X 10^{-12}$

The following conclusions can be drawn

B.The power of 10 in the solution is –12, the difference of the original exponents.

C.The coefficient is 3, which is greater than or equal to one but less than 10.

D.The quotient is 3.0 × $10^{-12}$

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3 years ago

13.......................

Alla [95]

Answer:

The answer is (d) ⇒ $pq^{2}r\sqrt[3]{pr^{2}}$

Step-by-step explanation:

* To simplify the cube roots:

If its number then the number must be written in the form x³

then we divide the power by 3 to cancel the radical

If its variable we divide its power by 3 to cancel the radical

∵ $\sqrt[3]{p^{4}q^{6}r^{5}}=p^{\frac{4}{3}}q^{\frac{6}{3}}r^{\frac{5}{3}}}$

∴ $p^{\frac{4}{3}}q^{2}}r^{\frac{5}{3}}=p^{1\frac{1}{3}}q^{2}r^{1\frac{2}{3}}$

∵ $p^{\frac{1}{3}}=\sqrt[3]{p}$

∵ $r^{\frac{2}{3}}=\sqrt[3]{r^{2}}$

∴ $p(p)^{\frac{1}{3}}q^{2}r(r)^{\frac{2}{3}}=p(\sqrt[3]{p})q^{2}r(\sqrt[3]{r^{2}})$

∴ $prq^{2}\sqrt[3]{pr^{2}}}$

∴ The answer is (d)

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