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Vaselesa [24]
2 years ago
12

Gwen bought 4 books about plants and 9 books about fish. She also bought 8 science magazines. Each book cost $12 and each magazi

ne cost $5. How much did Gwen spend in all?
PLZZZZZZZZ HELP U WILL GET 20 POINTS!! AND BRAINLIST!!
Mathematics
2 answers:
Elan Coil [88]2 years ago
6 0

Answer:

196

Step-by-step explanation:

12*13+8*5

sesenic [268]2 years ago
6 0

Answer:

$196

Step-by-step explanation:

First, you have to know how many total there are for each. In total, there are 13 books and 8 magazines. We also need to know how much all of these cost. So, you multiply 13 by 12 to find the total cost of the books. 13 books times 12 dollars each is <u>$156</u>. Now, we do the same for the magazines. 8 magazines times 5 dollars each is <u>$40</u>. To find how much she spent in all, you have to add the two numbers.

$156 plus $40 is $196.

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Examine the right triangle. A right triangle with side lengths 17 centimeters and 48 centimeters. The hypotenuse is unknown. Wha
Dimas [21]

Answer:

The answer to your question is  c = \sqrt{2593}

Step-by-step explanation:

Data

right triangle

short leg = 17 cm

long leg = 48 cm

hypotenuse = ?

Process

-Use the Pythagorean theorem to find the answer

              c² = a² + b²

c = hypotenuse

a = short leg = 17 cm

b = long leg = 48 cm

- Substitution

             c² = 17² + 48²

-Simplification

             c² = 289 + 2304

             c² = 2593

-Result

             c = \sqrt{2593}

5 0
3 years ago
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What are the numbers that are divisible by three
faust18 [17]
The numbers divisible by 3 are multiples of 3.
6 0
3 years ago
What is the value of the letter n?
sleet_krkn [62]

Answer:

The value of n depends on the questin. N would be a variable in an equation.

Step-by-step explanation:

For example. 2*n=6

n is the variable in the equation. Therefore, the value of n is 3. Because 2*3=6.

8 0
3 years ago
If x=9 and y=−3, evaluate the following expression:7(2x−3y)​
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Answer:

189

Step-by-step explanation:

You can replace the values of x with 9 and the values of y with (-3).

7(2x-3y) = 7(2 × 9 - 3 × -3)

             = 7(18 - -9)

             = 7(18+9)

             = 7 × 27

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7 0
3 years ago
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Answer:

I think it is 10 km/hr

Step-by-step explanation:

5 hrs = 40 more with 2 km/hr current

2 hrs= less 40 no current

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CHECK

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8 0
3 years ago
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