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Bess [88]
3 years ago
8

At the start of the week, Crystal’s bank account had a balance of $280. Each day from Monday to Friday, she used her debit card

to pay $5 for parking. She wrote a check for $42, and made two deposits of $75 each. She also withdrew $200 in cash at an ATM. Which of the following expressions can be used to find the balance in Crystal’s account? Select all that apply.
A) 280 + 5(5) + (–42) + 2(–75) + (–200)
B) 280 + 5(–5) + (–42) + 2(75) + (–200)
C) 280 + 5(–5) – 42 + 2(75) – 200
D) 280 + 5(–5) – 42 + 2(–75) – 200
Mathematics
2 answers:
xz_007 [3.2K]3 years ago
7 0

Answer:

The answers are B and C

Step-by-step explanation:

For B, the equation is 280  + 5(–5) + (–42) + 2(75) + (–200). For C, the equation is 280  + 5(–5) – 42 + 2(75) – 200. The difference between these two equations is that there is a +(-200) at the end for B, and a -200 for C at the end of the equation.

I got this correct on E D G E N U I T Y

trasher [3.6K]3 years ago
3 0

Answer:

b) 280+5(-5)+(-42)+2(75)+(-200)

Step-by-step explanation:

had a balance of 280= 280

each day from monday to friday she payed $5 parking= 5(-5), because she payed(lost) $5 for five days straight, so you multiply them.

she wrote a $42 check= -42, because she spent more money, so she is losing money.

she made 2 deposits of $75= 2(75), because deposit means adding money, so she added $75 two different times.

she withdrew $200= -200, she took out $200.

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number of MP3 players: 4500 based on information given, 2 out of 50 MP3 players are defective. this means every 50 samples, 2 would be defective  4500/50 = 90 90 • 2 = 180 so, your final answer would be: 180 MP3 players in the shipment are likely to be defective

8 0
3 years ago
Hector invests $10,000 at age 21. He hopes the investments will be worth $150,000 when he turns 50. If the interest compounds co
Slav-nsk [51]

Answer:

9.33%

Step-by-step explanation:

Step one:

given

Principal= $10,000

Final amount = $150,000

time = 50-21= 29 years

Required

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Step two:

to solve for the rate we can apply the formula for rate as

r = ln(A/P) /t

r= ln(150000/10000)/29

r= ln(15)/29

r=2.7080502011/29

r=0.0933

r= 0.0933*100

r= 9.33%

5 0
3 years ago
If anyone could help me with this last problem, I would greatly appreciate it.
il63 [147K]

Answer:

From the given information, the value of a is 3 and the measurement of ∠R is 25°

Step-by-step explanation:

For this problem, we have to find the value of a and the measurement of ∠R. We are given some information already in the problem.

<em>ΔJKL ≅ ΔPQR</em>

This means that all of the angles and all of the sides of each triangle are going to be equal to each other.

So, knowing this, let;s find the measurement of ∠R first.

All triangles have a total measurement of 180°. We are already given two angle measurements. We are given that the m∠P is 90° because the small box in the triangle represents a right angle and right angles equal 90°. We are also given that the m∠Q is 65° because ∠Q is equal to ∠K so they have the same measurement. Now, let's set up our equation.

65 + 90 + m∠R = 180

Add 65 to 90.

155 + m∠R = 180

Subtract 155 from 180.

m∠R = 25°

So, the measurement of ∠R is 25°.

Now let's find the value of a.

KL is equal to PQ so we will set up an equation where they are equal to each other.

7a - 10 = 11

Add 10 to 11.

7a = 21

Divide 7 by 21.

a = 3

So, the value of a is 3.

4 0
4 years ago
Fine the sum of the first 17 terms of the arithmetic sequence 10,14,18,22,26
Natasha2012 [34]
10,14,18,22,26,30,34,38,42,46,50,54,58,62,66,70,74
7 0
4 years ago
Please, help me on this question, guys! I know the answer for (a) so I'll write down, too. For (b) I tried "$89,000 because that
Alexeev081 [22]
Let x be a random variable representing the price of a Congo-imported black diamond. Let the higher price be p. Then,
P(x < p) = P(x < (p - mean)/sd) = P(x < (p - 60,430)/21,958.08) = P(z < 2)
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(p - 60,430)/21,958.08 = 2
p - 60,430 = 2 x 21,958.08 = 43,916.16
p = 34,916.16 + 60,430 = 104.346.16

Therefore, The required price is $104,346.16
7 0
3 years ago
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