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Scrat [10]
3 years ago
10

HELPP MEE WITH THIS i"ll GIVE YOU BRAINLIEST!!! Helen had $330 in her savings account when Vince opened a savings account with z

ero dollars. • Helen deposited $30 into her account each week for x weeks. • Vince deposited $50 into his account each week for x weeks. • The accounts did not earn interest. Which inequality represents this situation when the amount of money in Helen’s account was greater than the amount of money in Vince’s account? Q: A: A) 30x < 330 + 50x B) 50x > 330 + 30x C) 30x > 330 + 50x D) 50x < 330 + 30x
Mathematics
1 answer:
Black_prince [1.1K]3 years ago
3 0

D because
Helen= 330 + 30x because she started with $330 and each week deposited $30.
Vince= 50x because he started with no money and each week deposited $50.
The question asks for when Helen>Vince so the answer has to be D.
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The mean of Holly's first six math quiz scores was 75%. After taking the seventh quiz, her mean score rose to 77%. What was Holl
alexandr1967 [171]

Let x represent Holly's score on 7th math quiz.

We have been given that the mean of Holly's first six math quiz scores was 75%. This means that the average on 1st 6 math quizzes is 75.

To find the total scores on 1st 6 math quizzes, we will multiply 75 by 6 that is 75\times 6 =450.

We will use average formula to find test scores on 7th math quiz.

\text{Average of 7 math quizzes}=\frac{\text{Sum of scores on 7 math quizzes}}{\text{7 quizzes}}

77=\frac{x+450}{7}

Let us solve for x.

77\cdot 7=\frac{x+450}{7}\cdot 7

539=x+450

x+450=539

x+450-450=539-450

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8 0
3 years ago
If the area is 1808.64 what is the circumference
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πr² = 1808.64
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Which numbers are written in scientific notation? Check all that apply.
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Answer:

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Step-by-step explanation:

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Answer:

Size of |E n B| = 2

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Step-by-step explanation:

<em>I'll assume both die are 6 sides</em>

Given

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- |B|

The question stated the following;

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So first; we'll list out the sample space of both events

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E = \{2,4,6\}

Calculating the size of |E n B|

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|E n B| = \{2,4,6\}

<em>The size = 3 because it contains 3 possible outcomes</em>

Calculating the size of |B|

B = \{6\}

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