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3 years ago

6

Sara charges $10 an hour to babysit one child. Each additional child is an extra $2. How much will Sara charge to babysit three

children for five hours?

1 answer:

Masja [62]3 years ago

7 0

Answer:

70

Step-by-step explanation:

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Ernie is thinking of a number. The quotient id the number and 4 is 90.

Shkiper50 [21]

Answer:

360

Step-by-step explanation:

multiply 90 and 4

8 0

3 years ago

Tell whether the statement is TRUE or FALSE. Spheres that have the same length radii are called concentric.

Bas_tet [7]

False
Concentric circles and spheres are those that share the same center. The center of one sphere may be on the circumference of the other while they have the same radius. In that case, they would not be concentric.

4 0

3 years ago

Evaluate each function at the given value <br> f(n) = n ^ 4 + 5n ^ 3 + 2n ^ 2 - 5n + 13 at n = - 2

DedPeter [7]

Answer:

7

Step-by-step explanation:

<h3>Given</h3>

f(n) = n ^ 4 + 5n ^ 3 + 2n ^ 2 - 5n + 13

<h3>To find </h3>

f(-2)

<h3>Solution</h3>

<u>Substituting n with -2</u>

f(-2) =
(-2)^4 + 5(-2)^3 + 2(-2)^2 - 5(-2) + 13 =
16 - 40 + 8 + 10 + 13 =
7

3 0

3 years ago

What is the negation of the follwoing conditional statement? "If a parallelogram has four congruent sides then it is a rhombus".

Kamila [148]

Negation...means put " not " in both the hypothesis and conclusion

if a parallelogram DOES NOT have 4 congruent sides, then it is NOT a rhombus.

3 0

4 years ago

Read 2 more answers

Eugene walked all the way to school at 3 mph then realized she forgot her math book (how could she?!), so she ran back at 7 mph.

Fynjy0 [20]

$\text{Answer: }1\frac{23}{40}\ miles\text{ far she live from school.}$

Explanation:

Since we have given that

Speed at which Eugene walked all the way to school = 3 mph

After realizing that she forgot her math book, she ran back

Speed at which Eugene walked back to her house = 7 mph

Let the distance between her house and her school be x

According to question,

$\frac{x}{3}+\frac{x}{7}=\frac{45}{60}\\\\\frac{7x+3x}{21}=\frac{3}{4}\\\\\frac{10x}{21}=\frac{3}{4}\\\\x=\frac{3\times 63}{4\times 10}=\frac{63}{40}=1\frac{23}{40}\ miles.$

Hence,

$1\frac{23}{40}\ miles\text{ far she live from school.}$

8 0

3 years ago