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3 years ago

We need to buy 4 spirals for every student. If we have 25 students, how many spirals should we order?

Mathematics

1 answer:

ozzi3 years ago

8 0

Answer:

100

Step-by-step explanation:

4 spirals for 1 student. 4 x 25 to get the total number, and that equals 100

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If you were to use the substitution method to solve the following system, choose the

Nezavi [6.7K]

Answer:

15x - y = - 6.....15x + 6 = y...so we sub in 15x + 6 in for y on the other equation

5x - 3y = -13

5x - 3(15x + 6) = -13 <== the new equation

Step-by-step explanation:

7 0

2 years ago

Mrs. Smith left a 15% tip for a dinner that cost $62.40. About how much tip did Mrs. Smith leave?

Veronika [31]

Given :- 

Mrs. Smith left a 15% tip for a dinner that cost $62.40.

To find :- 

About how much tip did Mrs. Smith leave?

Solution :- 

The tip is 15% of $62.40 .

• Calculating 15% of $62.40

$ 62.40 * 15%
$ 62.40 * 15/100
$ 9.36

4 0

2 years ago

Read 2 more answers

HELP! please! ASAP! pleasee

murzikaleks [220]

Answer:

11.9

Step-by-step explanation:

I just know this off the top of my head

The real one is 11.18034

3 0

2 years ago

The equation h=kp describes h, the height of a stack of p pennies. A stack of 15 pennies is 24 millimeters tall. What is the val

slamgirl [31]

You plug in the values so it would be 24=15k. Divide by 15 on both sides so k=24/15=1.6. :)

8 0

3 years ago

Can someone help.

r-ruslan [8.4K]

Answer:

m∠C = 38° (nearest whole number).

Step-by-step explanation:

To find the missing angle, use the Sine Rule.

Sine Rule (for angles)

$\sf \dfrac{\sin A}{a}=\dfrac{\sin B}{b}=\dfrac{\sin C}{c}$

where:

A, B and C are the angles
a, b and c are the sides opposite the angles

Given:

A = 53°
a = 18
c = 14

To find m∠C, substitute the given values into the formula and solve for C:

$\implies \sf \dfrac{\sin 53^{\circ}}{18}=\dfrac{\sin C}{14}$

$\implies \sf \sin C= \dfrac{14 \sin 53^{\circ}}{18}$

$\implies \sf C= \sin^{-1} \left( \dfrac{14 \sin 53^{\circ}}{18}\right)$

$\implies \sf C= 38.40096301...^{\circ}$

Therefore, m∠C = 38° (nearest whole number).

Learn more about the sine rule here:

brainly.com/question/27089170

brainly.com/question/27704834

5 0

2 years ago