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exis [7]
3 years ago
9

what is a number that when you multiply it by 4 and add 15 to the product you get 28? show your work please

Mathematics
1 answer:
Helga [31]3 years ago
6 0

Answer:2

Step-by-step explanation:

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20 points I beg you help
svp [43]
Answer : -6

The common difference of a sequence is the value that changes every time the sequence continues.

In your sequence it is seen that 6 is subtracted from each term in order to get to the next in the sequence.
7 0
2 years ago
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A tool set is on sale for $424.15.The original price of tthe tool set was $499.00. What percent of the original price is the sal
Jet001 [13]

Answer:


Step-by-step explanation:

The sale price is out of the original price so do 424.15 / 499.00 to find what it is out of in decimal form. Multiply your answer by 100 to find the percentage.

So:

424.15 / 499.00 =0.85

0.85 x 100 = 85

So the answer would 85%.

Hope this helps!


3 0
3 years ago
What is the first geometric sequence below
ale4655 [162]
Notice that if you go forward, the common ratio is 5.  Each new term is found by mult. the previous term by 5.

If, on the other hand, you go backwards (terms decreasing), then you divide a term to find what the previous term was.

Here, divide 1 by 5 to find the first term.  It's 1/5.
5 0
2 years ago
A bus covers a distance of 90km at a uniform speed. Had the speed been 15km/hour it would have taken 30 minutes less for the jou
Brrunno [24]

Answer:

Step-by-step explanation

Let's say d = distance, r = speed and t = time

We know the distance formula is :

distance = speed x time

d = r multiplied by t

d = rt

If the speed is 15km/hr, the time would be 30 minutes shorter.

Since d = rt,

90 = 15t

t = 6,

This means the time taken for the bus to complete the journey at 15km/hr would be 6hrs.

Originally though, the journey takes 30 minutes longer.

So we can say t = 6.5 hrs , and we know d = 90

Now we use the distance formula:

d = rt, since we want to find the original speed, we want to find r.

Speed = distance/time

r = d/t

r = 90/6.5

r = 180/13

Therefore the original speed is 180/13 km/hr

4 0
3 years ago
How many degrees must the temperature increase to reach 0 ?
miv72 [106K]

Answer:

D because if you add 10 to negative ten the cancel out and make 0

Step-by-step explanation:

8 0
3 years ago
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