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DochEvi [55]
3 years ago
10

Samuel has a collection of toy cars. His favorites are the 27 red ones, which make up 90% of his collection. How many toy cars d

oes Samuel have?
Mathematics
2 answers:
Damm [24]3 years ago
5 0

Answer:

30

Step-by-step explanation:

natulia [17]3 years ago
5 0

Answer: 30

Step-by-step explanation:

If 27 is 90%, then 27/x=9/10. Cross multiply to get 270=9x. Divide by 9 to get 30

(I put the wrong answer the first time, my bad sorry)

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oksano4ka [1.4K]

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A:2p+p=10

Step-by-step explanation:

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3 years ago
8x − 4y = −16 <br> 3x + 15y = −6
mr_godi [17]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Three (3) is a common factor of 21 and 22.<br> O A. True<br> B. False<br> SUBMIT
Svetradugi [14.3K]

Answer:

false.

Step-by-step explanation:

Factors for 21: 1, 3, 7, and 21. Factors for 22: 1, 2, 11, and 22.

7 0
2 years ago
Read 2 more answers
HELP! PLEASE! I really need help with this question!
LekaFEV [45]

Answer:

They are at the same height at 1.13 seconds.

Step-by-step explanation:

Remark

The rockets are at the same height when  f(x) = g(x) [see below] are the same. So you can equate them.

Givens

f(x) = - 16x^2 + 74x + 9

g(x) = -16x^2 + 82x              I have changed this so you don't have 2 f(x)s

Solution

  • f(x) = g(x)
  • -16x^2 + 74x + 9 = -16x^2 + 82x                        Add:  16x^2 to both sides
  • -16x^2+16x^2+74x + 9 = -16x^2+16x^2 + 82x   Combine terms
  • 74x + 9 = 82x                                                     Subtract 74x from both sides
  • 74x - 74x + 9 = 82x - 74x                                  Combine
  • 9 = 8x                                                                 Divide by 8
  • 9/8 = 8x/8
  • x = 1 1/8                                                              Convert to decimal
  • x = 1.125
  • x = 1.13  [rounded]


6 0
3 years ago
Translate the sentence into an inequality.
Luda [366]

Answer:

5 + c > -22

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Inequalities

Step-by-step explanation:

<u>Step 1: Define</u>

Sum of 5 and c is greater than -22

↓ <em>Identify</em>

Sum = addition

  • 5 + c

Is greater than = inequality

  • >

Add them all together:

5 + c > -22

8 0
3 years ago
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