3 years ago

Calculate using order of operations.7.8+6.2×(4-1.5)×4

Mathematics

2 answers:

nasty-shy [4]3 years ago

8 0

Answer:

I believe that the answer is 69.8

KIM [24]3 years ago

5 0

The answer is 69.8 I did the math if you can give me brainliest

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In a school with 700 students, a survey revealed that 80% of the students liked the new lunch menu. Based on this data, how many

Slav-nsk [51]

Answer:

560 students

Step-by-step explanation:

We are given that the total number of students is

700

The survey results is 80% likes the new lunch menu

We are expected to establish what amount of students is 80%

=80/100*700

=0.8*700

=560

Hence 80% of 700 is 560

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3 years ago

A trucker traveled an average of 48.6 miles each hour on a 583.2-mile trip. For how many hours did the trucker travel?

nexus9112 [7]

Divide 583.2 by 48.6 to get your answer, 12 hours.

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3 years ago

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uysha [10]

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3 years ago

The volume of a right circular cone is 2,279.64 in cubed. If the height of the cone is 18 in, what is the diameter of the cone?

Aleksandr [31]

ANSWER

A. 22 in

EXPLANATION

The volume of a cone is calculated using the formula:

$Volume = \frac{1}{3} \times \pi {r}^{2} h$

It was given that: the volume is 2,279.64 in³

The height of the cylinder is also given as: h=18 in.

We substitute, the given values into the formula to get:

$2279.64= \frac{1}{3} \times (3.14) \times {r}^{2} \times 18$

$2279.64= 18.84 {r}^{2}$

${r}^{2} = \frac{2279.64}{18.84}$

${r}^{2} = 121$

We take positive square root to get;

$r = \sqrt{121}$

$r = 11in$

Therefore the diameter is 2(11) which is equal to 22 inches.

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3 years ago

Ab + 2b²<br> where<br> a = 7 b=4

Veronika [31]

Answer:

Step-by-step explanation:

$a=7\\b=4\\ab+2b^2\\(7)*(4)+2*(4)^2\\28+2*16\\28+32\\=\fbox{60}$

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1 year ago

Calculate using order of operations.7.8+6.2×(4-1.5)×4​

Calculate using order of operations.7.8+6.2×(4-1.5)×4