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VLD [36.1K]
3 years ago
7

8 is subtracted from a number,and then the difference is multiplied by 2.the result is 24.find the number

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
3 0

Answer:

20

Step-by-step explanation:

suppose the number is x

so

(x-8) * 2 =24

x-8=12

x=12+8

x=20

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The yearbook staff receive 75 submissions for yearbook articles. Paul will accept 2/5
antiseptic1488 [7]

Answer:

2/5 of 75 is 30 thats all i have for because i am haveing trouble with the same question

Step-by-step explanation:

7 0
2 years ago
Rochy deposited $400 in her checking account. She wrote a check for $400 to pay for her car note. Then , she made another deposi
AnnZ [28]

Answer:

$500

Step-by-step explanation:

She pick in $400, she took that $400 out so she would then have $0

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8 0
3 years ago
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Trapezia ABCD and PQRS are similar.<br> Find the area shaded in green.
avanturin [10]

The area shaded in green is 864 cm²

<h3>Similar figures</h3>

Similar figures, corresponding angles are congruent and the sides are ratio of each other. Therefore,

AB / PQ = CD / RS

30 / 10 = 24 / RS

30RS = 240

RS = 240 / 30

RS = 8 cm

let find the height of trapezium PQRS.

AB / PQ  = 36 / h

30 / 10 = 36 / h

30h = 360

h = 360 / 30

h = 12 cm

Therefore,

area of the green portion = area of ABCD - area of PQRS

<h3>Area of a trapezium</h3>
  • area = 1 / 2(a + b)h

Therefore,

area of ABCD = 1 / 2(24 + 30)36 =  1 / 2 (54)36 = 1944 / 2 = 972 cm²

area of PQRS = 1 / 2(10 + 8)12 = 1 / 2(18)12 = 216 / 2 = 108 cm²

Area of the green portion = 972 - 108 = 864 cm²

learn more on trapezium here: brainly.com/question/11961445

6 0
2 years ago
An item that originally cost $12 was on clearance Alford $3.60 what is the percentage of the discount
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6 0
2 years ago
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The answer is A I just need help working it out
nordsb [41]
STU + STR = 180
8x + STR = 180 [ STU = 8x ]
STR = 180 - 8x

STR = SRT [ RS ≈ ST ]

Now, In ΔSRT,
we have, RST = 7x - 54, STR = SRT = 180-8x
Their sum is 180, as it constitutes a triangle.

7x-54 + 2(180-8x) = 180
7x - 54 + 360 - 16x = 180
 306 - 9x = 180
9x = 306 - 180
9x = 306 - 180
x = 126/9
x = 14

So, option A is your answer.

Hope this helps!

5 0
3 years ago
Read 2 more answers
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