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photoshop1234 [79]
3 years ago
15

Gabrielle was out at a restaurant for dinner when the bill came. His dinner came to $20. After adding in a tip, before tax, he p

aid $23. Find the percent tip
Mathematics
2 answers:
KATRIN_1 [288]3 years ago
6 0

Answer:

75%

Step-by-step explanation:

Svetlanka [38]3 years ago
5 0

Answer:

75%      I had this yesterday

Step-by-step explanation:

You might be interested in
10. There are 355 students at Median Middle School. If there 8% of the students were absent on Tuesday, how many students were a
Setler79 [48]

To solve this question, we simply need to divide the total amount of students by 8% to find out how many students were absent and how many were present.

However, we can't simply multiply it by 8%, so we need to turn that into a decimal.

8% - 0.08

<em>Multiply:</em>

<em>355 x 0.08</em>

<em>= 28.4</em>

<em>Round:</em>

<em>28 kids were absent</em>

<em>Subtract:</em>

<em>355 - 28</em>

<em>= 327</em>

<em />

<em>This means that </em><em>28 kids were absent</em><em>, and </em><em>327 kids were present</em><em>.</em><em> </em>

<em />

<em />

6 0
1 year ago
8+9=
Bumek [7]

Answer:

17

Step-by-step explanation:

7 0
2 years ago
Newton’s law of universal gravitation, F=Gm1m2/r²,measures the force of gravity between two masses m1 and m2,where r is the dist
Pavel [41]

Answer:

G=\frac{Fr^2}{m_1m_2}

Step-by-step explanation:

Since our equation is F=\frac{Gm_1m_2}{r^2} and we want to solve for G, first we divide both sides by the product m_1m_2, which gives:

\frac{F}{m_1m_2}=\frac{Gm_1m_2}{m_1m_2r^2}=\frac{G}{r^2}

So we are left with:

\frac{F}{m_1m_2}=\frac{G}{r^2}

Now we multiply both sides by r^2, which gives:

\frac{Fr^2}{m_1m_2}=\frac{Gr^2}{r^2}=G

Which gives us our final formula:

G=\frac{Fr^2}{m_1m_2}

6 0
3 years ago
A fish tank is 3 feet by 4 feet by 5 feet. How many galoons of water will it hold? A cubic foot of water is 7.5 gallons.
likoan [24]

Answer: 8 gallons of water.

Step-by-step explanation:

3 x 4 x 5 = 60.

60 divided by the number of gallons per cubic foot 7.5 = 8 gallons. :)

6 0
3 years ago
Prove the polynomial identity.
aleksandr82 [10.1K]

Explanation:

Since we have given that

(2x+1)^2-2(2x+1)

Now, we have to prove it as

(2x+1)(2x-1)

Now, start the iterations:

(2x+1)^2-2(2x+1)\\\\=4x^2+1+4x-4x-2\\\\=4x^2+1-2\\\\=4x^2-1\\\\=(2x)^2-1\\\\=(2x+1)(2x-1)

So, first blank will be filled with

4x^2+4x+1

Second blank will be filled with

4x^2-1

Hence proved.

7 0
3 years ago
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