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goblinko [34]
3 years ago
6

A school rewards students for good work by giving them merit points. James has x merit points. Sarah has four times as many meri

t points than james. Robert has 68 fewer merit points than james. Each merit point is worth 3 pence. All three of the students have a total of £15.60. Work out how many merit points each student has.
Mathematics
1 answer:
Yuliya22 [10]3 years ago
7 0
14.31= x +3x+ (x-43)
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Catalina uses a 3 1/2 ounce packet of seasoning for her steaks. The packet contains of 1 1/3 ounces of garlic powder and 1 1/4 o
svp [43]

Answer:

11/12

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4 0
4 years ago
Solve for zzz. 42=-7(z-3)42=−7(z−3)
xxTIMURxx [149]

Answer:

False

Step-by-step explanation:

Well to solve for z we single it out, distribute, use the communicative property, and combine like terms.

42 = -7(z - 3)42 = -7(z - 3)

Distribute

42 = -7z + 21*42 = -7z + 21

42 = -7z + 882 = -7z + 21

-42 to both sides

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-21 to both sides

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+7z to both sides

819 = 0

<em>Thus, </em>

<em>the given equation is false.</em>

<em>I hope this helps :)</em>

5 0
3 years ago
If a+b=2x-2 and a-b=4x-8
spin [16.1K]
What are you looking for? looking for x a or b?
4 0
4 years ago
solve the following word problem. use x for the unknown value. the average cost of a car in 2013 is said to be 5 less than twice
Rashid [163]
Let the average cost of car in 2009 be $x, then the average cost of a car in 2013 is 2x - 5
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7 0
4 years ago
Given 2x^2=-8, x is<br><br> A.-2<br> B. 2<br> C. 2i or -2i<br> D. 4i or -4i
Lera25 [3.4K]

Answer:

2i or -2i

Step-by-step explanation:

2x² = -8     First, clear x.

x² = -8/2    Solve

x² = -4        Now, eliminate the square of x by solving the square root of -4.

x = √-4

x = 2i or -2i Is an imaginary number.

4 0
3 years ago
Read 2 more answers
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