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stealth61 [152]
3 years ago
5

Round the following numbers to

Mathematics
1 answer:
dangina [55]3 years ago
5 0

Answer:

22,500,000 ⇒ 20,000,000

27,500,000 ⇒ 30,000,000

67,490,000 ⇒ 65,000,000

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4) Arnold ate breakfast at a restaurant. His total came to $76.75. There is an 8% sales tax and 15% tip. What is Arnold's total
lisov135 [29]

Answer:

The total cost is $95.32.

Step-by-step explanation:

Given:

Total came to $76.75. There is an 8% sales tax and 15% tip.

Now, to find the total cost.

<em>8% sales tax is there so we calculate the amount after adding sales tax:</em>

$76.75 + 8% of $76.75

76.75+\frac{8}{100}\times 76.75

76.75+0.08\times 76.75

76.75+6.14

82.89

The cost after sales tax is $82.89.

Now, <em>the cost after 15% tip:</em>

$82.89 + 15% of $82.89

82.89+\frac{15}{100}\times 82.89

82.89+0.15\times 82.89

82.89+12.43

95.32

The cost after the tip is $95.32.

Therefore, the total cost is $95.32.

8 0
3 years ago
1. The ratio of the number of boys to the number of girls on the swim team
Papessa [141]

Answer:

8

Step-by-step explanation:

Sum the parts of the ratio 4 + 2 = 6 parts

Divide 24 by 6 to find the value of one part of the ratio

24 ÷ 6 = 4 ← value of 1 part, thus

number of boys = 4 × 4 = 16

number of girls = 2 × 4 = 8

Hence there are 8 more boys than girls

5 0
4 years ago
Help me please!!!!!!​
Arada [10]
<h3>Answer: sin(C) = 3/5</h3>

==========================================================

Explanation:

Recall that sine is the ratio of opposite over hypotenuse.

For angle C, the opposite side is AB = 24 as this leg is furthest as possible from angle C. The hypotenuse is always opposite the 90 degree angle.

So,

sin(angle) = opposite/hypotenuse

sin(C) = AB/AC

sin(C) = 24/40

sin(C) = (8*3)/(8*5)

sin(C) = 3/5

If you want to find the measure of angle C, then you apply the arcsine rule to both sides. Inverse sine is the same as arcsine.

5 0
3 years ago
Read 2 more answers
Prove that PQR is a straight line
DochEvi [55]
Answer:
Hi! so i cant see the problem only the question so il try to help.
Step-by-step explanation:
so look at your problem and follow the line that links P, Q and R
follow those letters and see whether its straight in a curved line or its curved in a different way.
hope this helps :p
6 0
1 year ago
What is the solution of 3 sqrt x+8=-4?
ryzh [129]

Answer:

x=-72

Step-by-step explanation:

The given equation is \sqrt[3]{x+8}=-4.

We cube both sides of this equation to obtain;

(\sqrt[3]{x+8})^3=(-4)^3.

This implies that;

(x+8)=-64

We group similar terms to obtain;

x=-64-8

We simplify the right hand side of the equation to obtain;

x=-72

Therefore x=-72 is the solution of the given equation.

4 0
4 years ago
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