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igomit [66]
3 years ago
10

John drove from station A to station B a distance of 224 miles. On his way back, he increased his speed by 10 mph. If the journe

y back took him 24 minutes less, what was his original speed?
Mathematics
1 answer:
meriva3 years ago
5 0

Answer: 70 mph

Step-by-step explanation:

224/x =224/x+10 +24/60

Solve equation

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The price of pair of shoes is $63.20. The sales tax rate is 4.5 percent. How much sales tax would you pay if you bought these sh
olga nikolaevna [1]
The answer to the problem is as follows:

We can convert 4.5% into a decimal form by moving the decimal to the left two places. This becomes: .045

<span>63.20 x .045 = $2.84

</span>I hope my answer has come to your help. God bless and have a nice day ahead!

4 0
2 years ago
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Evaluate. 2 × 5.6 ÷ 2.8 + 3.5 Plz Help Asap 15POINTS
statuscvo [17]

Answer:

The answer is 7.5

Step-by-step explanation:

BODMAS:

2 × (5.6 ÷ 2.8)+ 3.5

= 2 × 2 + 3.5

= 4 + 3.5

= 7.5

(Correct me if i am wrong)

6 0
3 years ago
Help help help me THE PICTURE IS THERE UP
liubo4ka [24]

Answer: 16x -10

Step-by-step explanation:

2x + 14x = 16x

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5 0
3 years ago
If using the method of completing the square to solve the quadratic equation x^2+8x+37=0, which number would have to be added to
Feliz [49]

Answer:

The numbers are --> x = -4 + √21 i and  x = -4 — √21 i

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6 0
3 years ago
1.     At a fundraiser dinner, the bill for 4 cups of coffee
babymother [125]

<u><em>1- Writing the system of equations:</em></u>

The price of a cup of coffee is denoted by c while the price of a spaghetti is denoted by s

<u>We are given that:</u>

4 cups of coffee and 6 spaghetti cost $20.5

<u>This means that:</u>

4c + 6s = 20.5 ................> equation 1

<u>We are also given that:</u>

1 cup of coffee and 3 spaghetti cost $8.75

<u>This means that:</u>

c + 3s = 8.75 .................> equation 2

<em><u>2- Solving the equations using substitution methods:</u></em>

<u>From equation 2:</u>

c = 8.75 - 3s ................> I

<u>Substitute with I in equation 1 and solve for s as follows:</u>

4c + 6s = 20.5

4(8.75 - 3s) + 6s = 20.5

35 - 12s + 6s = 20.5

35 - 6s = 20.5

6s = 14.5

s = $2.41667

<u>Substitute with s in I to get c:</u>

c = 8.75 - 3s

c = 8.75 - 3(2.41667) = 1.4999 = $1.5

<u><em>3- getting price for 1 cup of coffee and 1 spaghetti:</em></u>

c + s = 1.5 + 2.41667 = $3.91667

Hope this helps :)

3 0
2 years ago
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