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Gelneren [198K]
3 years ago
7

Alden Has $68.72 saved for vacation. He had more saved, but spent $3.92 on a birthday card for friend. How much had Alde has $68

.72 saved for vacation. He had more saved, but spent $3.92 on a birthday card for friend. How much had Alden safe before he bought the birthday card?
Mathematics
2 answers:
Vikki [24]3 years ago
4 0
He had saved 72.64 before he bought the card
olga2289 [7]3 years ago
3 0
He saved more than 68.72 in order to spend the $3.92 for the card. So
$68.72 + 3.92 = 72.64
He saved 72.64 before he bought the card.
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Tyrone has 16 model airplanes on his shelf. He has 4 times as many model airplanes as model trains. How many model trains does T
dexar [7]

Step-by-step explanation:

4m =16

divide both sides by 4

m = 4

he has 4 model trains

7 0
3 years ago
Find a4 for the arithmetic series with S4=-36 and a1=9
erastova [34]

ANSWER

The 4th term is -27

EXPLANATION

The sum of the first n-terms of an arithmetic sequence is

S_n= \frac{n}{2} (2a_1+d(n-1))

It was given that,

S_4 =  - 36

a_1 = 9

- 36= \frac{ 4}{2} (2 \times 9+d(4-1))

-36=2(18+3d)

-18=18+3d

-18 - 18 = 3d

3d =  - 36

d =  - 12

The n-term is given by:

a_n=a_1+ (n-1)d

We substitute n=4 to get,

a_4=9+ (4-1)  \times -12

a_4=9+ 3\times -12

a_4=9 - 36

a_4= - 27

5 0
3 years ago
Which property is shown in the problem below?
Studentka2010 [4]

Answer:

Step-by-step explanation:

-8 (x - 3y - 9) = distribute the -8 through the parenthesis

-8(x) - 8(-3y) - 8(-9) =

-8x + 24y + 72

this is the distributive property....u are distributing the -8 through the parenthesis...what that means is ur multiplying -8 by everything in the parenthesis....you do this to remove the parenthesis

7 0
3 years ago
the temperatures on mercury range from -279°f too 800°F . What Is the difference between the highest and lowest temperatures
QveST [7]
Hello, your answer is: <span>1079, because remember, this equation represents
*800 - (-279)
so, you need to use the method of KCC, or, k=keep, c=change, c=change.
you keep the 800 positive, switch the (-) subtraction sign to a (+) addition sign, and also, make the (-279) a positive 279. so you turn out with:
*800 + 279, which equals = 1079
*youre welcome!!!! can you please pick this answer as the brainliest??? please i really need it, thank you!!! :)
</span>
8 0
3 years ago
Find the balance in the account after the given period
strojnjashka [21]

Answer:

$1200

Step-by-step explanation:

5% of $3000 = $150

multiply 8 by $150 = $1200

7 0
2 years ago
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