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AfilCa [17]
3 years ago
7

Which expression represents the algebraic phrase “the sum of negative three-eighths and four times x minus nine times z”?

Mathematics
2 answers:
7nadin3 [17]3 years ago
8 0

Answer:

-3/8+4x-9z

Step-by-step explanation:

"The sum of -3/8" means -3/8+ some number, which we find out (later in the expression) to be 4×x (that is 4 times x), or 4x. So we add on 4x to the expression, which becomes -3/8+4x. Then, it says "minus 9 times z", so we just take away 9×z. So, the final expression is -3/8+4x-9z.

Hope this helps! I got it right on Edgen.; you should trust me

MAXImum [283]3 years ago
7 0
An algebraic phrase or expression is a mixture of integer constants, variables and algebraic operations like addition, subtraction, multiplication, division and exponentiation. In this problem, you need to isolate first what is grouped together or what needs to be done first which in this sentence, "the sum of negative three-eighths and four. By substitution, it would be (-3/8+4). Then you multiply their sum by x so it would result to (-3/8+4)x. After that it is said that you need to minus that to nine times z which is 9z. This will result to an expression like this (-3/8 +4)x-9z. In the simplest term, the answer would be 9/8x-9z.
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Rectangle B is a scale drawing of rectangle A using a scale factor of 150%. The area of rectangle A is 32 square units. What is
drek231 [11]

Answer:

The answer is 72 square units

Step-by-step explanation:

If rectangle A is scaled by 150% that means the length and breadth of rectangle A were both increased by 1.5(150%) to yield rectangle B.

So, the area of rectangle B is 1.5L x 1.5B = 2.25LB

But, LB = area of rectangle A which is = 32

So, area of rectangle B

= 2.25 x 32

= 72square units.

5 0
3 years ago
Read 2 more answers
Can anyone please help
ANTONII [103]

2. 64 = 2 × 2 × 2 × 2 × 2 × 2 2 |64

√64 = √2 × 2 × 2 × 2 × 2 × 2 2 |32

√64 = 2 × 2 × 2 2 |16

√64 = 2³ 2 |8

√64 = 8 2 |4

2 |2

3. No positive square root exists for -85 as it is a negative integer. The squares of a number is always positive.

4. 114 is not a perfect square. √114 = 10.677078252

5. √16 = 4

6. √105 = 10 (nearest)

7. √81 = 9

8. √14 = 4 (nearest)

9. √8 = 3 (nearest)

3 0
3 years ago
Can u answer 21-25 please?
Mila [183]
21-25 is -4. Is this helpful?
8 0
3 years ago
Can someone please help with this question pleaseee
Ulleksa [173]

Answer: Choice C) 10.5

The distance from A to C is 7 units (count out the spaces between the two points, or subtract y coordinates 4-(-3) = 4+3 = 7)

Let AC = 7 be the base of the triangle. You might want to rotate the image so that AC is laying horizontally rather than being vertical.

Now move to point P. Walk 3 spaces to the right until you land on segment AC. This shows that the height of the triangle is 3 when the base is AC = 7.

base = 7, height = 3

area of triangle = (1/2)*base*height

area of triangle = 0.5*7*3

area of triangle = 10.5 square units

7 0
3 years ago
Read 2 more answers
Can Anyone Please HELP ME ITS DUE TOMORROW MORNING
almond37 [142]

Answer:

Step-by-step explanation:

1/8 = 1/9 + x ...multiply by LCD of 72

9 = 8 + 72x

9 - 8 = 72x

1 = 72x

1/72 = x

1/8 = 1/10 + x....multiply by 40

5 = 4 + 40x

5 - 4 = 40x

1 = 40x

1/40 = x

1/8 = 1/11 + x....multiply by 88

11 = 8 + 88x

11 - 8 = 88x

3 = 88x

3/88 = x

can all unit fractions be made in more then 1 way like this ?

not to sure because that last one....because it has been that a unit fraction is the outcome of adding together 2 unit fractions...but that last one...3/88 is not a unit fraction

4 0
3 years ago
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