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givi [52]
3 years ago
9

5(7 − 4)2 ÷ 3 + 11 =

Mathematics
1 answer:
Ksivusya [100]3 years ago
8 0

Answer:

21

Step-by-step explanation:

you subtract 7 and 4 and you will get 5 times 3 times 2 divide by 3 plus 11. then you divide 3 on both sides and you'll get 5 times 1 times 2 plus 11. then you multiply 5 with 2 and add 11. you'll get 10 plus 11 and you will get your answer as 21.

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Jeanne makes hair bows to sell at the craft fair. Each bow requires 1.5 yards of ribbon.
UkoKoshka [18]

Answer:

a) 378 foot

b) 3780¢

c)10^3\times 2^1\times 3^3\times 7^1

Step-by-step explanation:

Given: Ribbon required to make 1 bow = 1.5 yards

We know that 1 yard = 3 foot

a) Number of bows Jeanne wants to make = 84

Foot of ribbon required to make 84 bows

= Number of bows Jeanne wants to make × Ribbon required to male 1 bow

= 84 × 1.5 yards

= 126 × 3 foot = 378 foot

Thus, Jeanne requires 378 foot of ribbon to make 84 bows.

b) Cost of ribbon = 10¢ per foot

Total money required to buy ribbon

= Cost of ribbon × Amount of ribbon required in foot

= 10 × 378

= 3780.00¢

c) Number of bows manufacture wants to make = 84 × 1000

= 84,000 bows

Amount of ribbon required to make bows

= 1000 × Amount of ribbon required to make 84 bows

=  1,000 × 378 = 378000 foot

To write it in exponential form:

378000 = 10^3\times 2^1\times 3^3\times 7^1

8 0
3 years ago
There are 2 cups in one pint how many cups are in 5 pints
olga nikolaevna [1]
There will be 10 cups in 5 pints because it went by to 5x2=10 and there is 2 cups so its 5 in 2 cups = 10
hoped this helped.
7 0
3 years ago
Three medium apples have about 285 calories.
vodomira [7]

Answer:

That is 52 calories per apple.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
4z−(−3z)=<br> combining like terms
uranmaximum [27]
For combining like terms: it is 7z
3 0
3 years ago
Read 2 more answers
1.Arsenic-74 is used to locate brain tumors. It has a half-life of 17.5 days. 90 mg wereused in a procedure. Write an equation t
Sophie [7]

1)\text{   }N_t\text{ = 90\lparen}\frac{1}{2})^{\frac{t}{17.5}}

2) 5.625 mg will be left

Explanation:

1) Half-life = 17.5 days

initial amount of Arsenic-74 = 90 mg

To get the equation, we will use the equation of half-life:

\begin{gathered} N_t\text{ = N}_0(\frac{1}{2})^{\frac{t}{t_{\frac{1}{2}}}} \\ where\text{ N}_t\text{ = amount remaining} \\ N_0\text{ = initial amount} \\ t_{\frac{1}{2}\text{ }}\text{ = half-life} \end{gathered}N_t\text{ = 90\lparen}\frac{1}{2})^{\frac{t}{17.5}}

2) we need to find the remaining amount of Arsenic-74 after 70 days

t = 70

\begin{gathered} N_t=\text{ 90\lparen}\frac{1}{2})^{\frac{70}{17.5}} \\ N_t\text{ = 5.625 mg} \end{gathered}

So after 70 days, 5.625 mg will be left

4 0
1 year ago
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