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Tom [10]
2 years ago
7

2d+2=8 i think i know the answer but i need to know for sure

Mathematics
2 answers:
IrinaK [193]2 years ago
7 0

Answer:

simple. d=3

Step-by-step explanation:

2d+2=8

subtract 2 from both sides:

2d=6

divide 2 from both sides:

d=3

Law Incorporation [45]2 years ago
5 0

Answer:

D = 3

Step-by-step explanation:

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Solve the inequality-7x>21.what is the graph of the solution?
uranmaximum [27]
-7x>21
divide both sides by -7

7 0
3 years ago
A math teacher keeps her wall-sized graph paper in a box shaped like a triangular prism. The triangular face of the prism has a
yaroslaw [1]
(24 × 17 × 130\2)

24 × 17 = 408 x 130 = 53,040 / 2 = 26,520
So the volume of this box is

C= 26,520 cm^3
6 0
2 years ago
18 Andy flies from the UK to Japan.
kotykmax [81]

Answer:

<u>Leila pays more</u> than Andy to fly from the UK to Australia.

Step-by-step explanation:

Given:

Andy flies from the UK to Japan.

His plane ticket costs £554.

Andy then flies from Japan to Australia.

His plane ticket costs 70 140 Japanese Yen.

The exchange rate is £1 = 140 Japanese Yen.

Leila flies from the UK to Australia.

Her plane ticket costs 1860 Australian dollars.

The exchange rate is 1 Australian dollar = £0.62.

<u>Now, to find Andy or Leila who pays more to fly from the UK to Australia.</u>

Andy flies from the UK to Japan.

His plane ticket costs = £554.

Andy then flies from Japan to Australia.

His plane ticket costs 70 140 Japanese Yen.

The exchange rate is £1 = 140 Japanese Yen.

So, by using conversion factor we convert Japanese Yen to £.

140 = £1

70140 = 70140\div 140=\£501.

His plane ticket costs = £501.

Now, adding both the cost of tickets:

501+554=\£1055.

Andy total pays fly from the UK to Australia is £1055.

Now, to get the cost of plane ticket of Leila from the UK to Australia.

Her plane ticket costs 1860 Australian dollars.

The exchange rate is 1 Australian dollar = £0.62.

So, by using conversion factor:

1 Australian dollar = £0.62

1860 Australian dollar = 1860\times 0.62=\£1153.2

Her plane ticket costs is £1153.2.

<u><em>As, we see that cost of plane ticket of Andy is £1055 and cost of plane ticket of Leila is £1153.2.</em></u>

<em>Thus, Leila pays more.</em>

Therefore, Leila pays more than Andy to fly from the UK to Australia.

4 0
3 years ago
Ernie Rolph borrowed ​$3200 at 10​% annual simple interest. If exactly 1 year later he was able to repay the loan without​ penal
Setler [38]

Answer:

$320

Step-by-step explanation:

From simple interest formular

A=P(1+int) where A is amount payable, P is principal amount borrowed and int is interest gained

int=Rt where R is rate of interest in decimal form, t is duration

The rate of 10% converted to decimal is 10/100=0.1

Substituting P for $3200, R for 0.1 and t for 1 year

A=$3200(1+(0.1*1))=$3200*(1+0.1)=3200*1.1=$3520

To find the interest, it's A-P hence $3520-$3200=$320

Therefore, interest owed is $320

6 0
3 years ago
Please answer properly.
madreJ [45]

Answer:

1) y=-6

2)x=3

3) y=8

4)a=8

Step-by-step explanation:

4y+24=0

subtract 24 from both sides

4y=-24

divide both sides by 4

y=-6

---------->>>>

15+3=6x

combine like terms

18=6x

divide both sides by 6

3=x

---------->>>>

9y-72=0

add 72 to both sides

9y+72

divide both sides by 9

y=8

---------->>>>

8a=75-11

combine like terms

8a=64

divide both sides by 8

a=8

--------------------------------------------

Hope this is helpful.

8 0
3 years ago
Read 2 more answers
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