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lilavasa [31]
3 years ago
7

2+2+3+3+4+4+5+5+6+6+7+7+8+8+9+9+2+2​

Mathematics
2 answers:
Margaret [11]3 years ago
6 0

Answer:

Step-by-step explanation:

90

azamat3 years ago
4 0
Your answer is 92 you can also used your calculator thanks
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Caroline's coffee shop sells a refill mug for $8.95. Each refill cost $1.50. Last month Sean spent $26.95 on a mug and refills.
Talja [164]
Alright! First you'd have to subtract the flat fee of the mug which is $8.95, then you'd have to divide by the rate which is $1.50. Your equation would be:
 (26.95 - 8.95) ÷ 1.50 = r 

Then you solve using your head.. lol.
(26.95 - 8.95) = 18.
(18 ÷ 1.50) = 12.
R = 12.

Hope this helps :).
3 0
4 years ago
A.Who was the first english mathematician who first used the modern symbol of equality in 1557?
liberstina [14]

Answer:

Robert Recorde.

Step-by-step explanation:

Robert Recorde was a Welsh known for vast knowledge and experience in the field of mathematics and physics. He was born in Tenby, Pembrokeshire, Wales during the Medieval period (c. 1512).

Robert Recorde was famously known for his work in the field of mathematics and most especially, the invention of the equal to (=) sign. He introduced it in his book titled "The Whetstone of Witte."

<em>Hence, Robert Recorde was the first english mathematician who first used the modern symbol of equality in 1557. </em>

8 0
3 years ago
Simplify the expression.<br> -5(7m + 9) =
OlgaM077 [116]

Answer:

Step-by-step explanation:

Here you go mate

Step 1

-5(7m + 9)  Equation/Question

Step 2

-5(7m + 9)  Simplify

(-5)(7m+9)

Step 3

(-5)(7m+9)  Multiply

-35m-45

Answer

-35m-45

Hope this helps

6 0
3 years ago
Read 2 more answers
-<br>Write the equation for tan 32.​
Marizza181 [45]

Answer:

If the angle is 32, then the tan of 32 degrees will be 0.625.

Step-by-step explanation:

This is useful because if you know either Opposite or Adjacent length, you can enter it in the equation above and solve for the missing length.

You can also re-write the equation above to solve for Opposite and Adjacent to get the following new equations:

Opposite = 0.625 x Adjacent

Adjacent = Opposite / 0.625

3 0
3 years ago
Please find the least common denominator for4/5 2/3
Ghella [55]

Answer:

A denominator of 15

Step-by-step explanation:

3 and 5 both go into 15, 4/5 = 12/15 and 2/3=10/15

4 0
3 years ago
Read 2 more answers
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