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inessss [21]
4 years ago
5

What value is equivalent to 8 · 9 − 2 · 5?

Mathematics
1 answer:
Arlecino [84]4 years ago
7 0

It’s important to keep PEMDAS in mind (order of operations) when solving this.

PEMDAS stands for: Parentheses, exponents, multiplication, division, addition, subtraction.

So when doing this problem we can see that there are two multiplication problems (8 • 9) and (2 • 5) so let’s put those to the side and solve those.

8 • 9 = 72

2 • 5 = 10

Now we can put the problem back together as 72-10

So ... 72-10=62

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Answer:

63 degrees.

Step-by-step explanation:

TRaingle ABC is isosceles so the base angles are equal That is < BAC = < BCA.

<BAC = 180 - 117 = 63 degrees ( because it  is adjacent to <x which is 63 degrees).

So < BCA = <BAC = 63 degrees.

Finally y = 63 degrees ( vertical angles are equal).

5 0
3 years ago
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Step-by-step explanation:

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Last Friday, Kira and Marcy got dinner at seaside sushi restaurant. Kira ordered 2 prices of tuna and 5 pieces of crab. Marcy or
olga_2 [115]

Answer: \frac{5}{11}

Step-by-step explanation:

Given

Kira order 2 pieces of tuna and 5 pieces of crab

While Marcy ordered 3 pieces of tuna and 6 pieces of crab

Total tuna ordered =2+3=5 pieces

Total crab ordered=5+6=11 pieces

The ratio of Tuna and crab is   \frac{2+3}{5+6}=\frac{5}{11}

7 0
3 years ago
Chloe just turned 8 years old and her sister Sheila just turned 14 years old. In how many years will the sum of their ages be eq
Otrada [13]
14 years. In 14 years Chloe will be 22 and Sheila will be 28. 22+28 is 50.
6 0
3 years ago
12 5/6 - 7 3/10 = Jan rig cufogy8vohc68​
noname [10]

Exact Answer: 83/15

Decimal Answer: 5.53 (bar notation above 3)

Mixed Number Answer: 5 8/15

Step-by-step explanation:

Convert the mixed numbers to improper fractions, then find the LCD and combine.

8 0
3 years ago
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