2 years ago

B

Mathematics

1 answer:

Natalija [7]2 years ago

3 0

Answer: 64°

Step-by-step explanation: I just took it

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Solve: 1 × -23 = Question 9 options: -1 1 23 -23

Nonamiya [84]

Answer:

-23

Step-by-step explanation:

1 × -23

1. When multiply a positive number by a negative number, the answer will always be negative.

2. When we multiply any number by 1, that number will stay the same.

$1 * -23$
$-23$

Therefore, the answer is -23!

8 0

2 years ago

Mrs.Anderson bought party favors for the 24 students in her class. Each favor cost $2.27. How much did all the party favors cost

laiz [17]

$54.48 because 24 x 2.27 = 54.48

7 0

3 years ago

What is the value of this expression 14−3? 164 112 12 64

Firlakuza [10]

Answer:

Step-by-step explanation:

14-3 = 11

you have 14 apples and you eat 3 of them. wow! now you have 11 apples!

4 0

3 years ago

If a triangle has sides of 8,11, and 13. Is it a right triangle?

Vera_Pavlovna [14]

If a² + b² = c², then the triangle is right.

So we have (8)² + (11)² ? (13)²

(8)² is 64, (11)² is 121, and (13)² is 169.

So we have 64 + 121 ? 169

64 + 121 is 185 and we can see that 185 > 169.

This triangle would not be a right triangle.

In fact, it would be an acute triangle.

So no, it's not a right triangle.

8 0

3 years ago

You need a 15% acid solution for a certain test, but your supplier only ships 5% solution and 17.5% solution. If you need 20 lit

Nimfa-mama [501]

Answer:

4 liters of 5% and 16 liters of 17.5%

Step-by-step explanation:

Let quantity of 5% be x liters and of 17.5% be y liters

x+y=20 hence y=20-x

Introducing percentages

0.05x+0.175(20-x)=0.15*20

0.05x+3.5-0.175x=3

-0.125x=-0.5

$x=\frac {-0.5}{-0.125}=4$

Therefore, y=20-x=20-4=16

You need 4 liters of 5% and 16 liters of 17.5% to achieve 20 liters of 15% acid solution

6 0

2 years ago

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