3 years ago

What's This Answer Please

Mathematics

1 answer:

Hatshy [7]3 years ago

5 0

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Simplify the following expression.<br><br> ‐3 + 7(a – 3b – 1) – 4(10 – a + 2b)

mihalych1998 [28]

Answer:

11a − 29b − 50

Step-by-step explanation:

Subtract 7 from − 3

7a − 21b − 10 − 40 + 4a − 8b

Add 7a and 4a

11a - 21b - 10 - 40 - 8b

Subtract 8b from -21b

11a - 29b - 10 - 40

Subtract 40 from -10

11a - 29b - 50

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2 years ago

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Can someone help me please i need help

DerKrebs [107]

Answer:

Step-by-step explanation:

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3 years ago

Olivia is 48 inches tall , and 2/3 as tall as her brother Cameron. In inches,how tall is Cameron?

True [87]

Cameron is 72 inches tall.
2/3 of 72 = 48

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4 years ago

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Sarah and Henry share some sweets in the ratio 5:6.

Setler79 [48]

Answer:

48 sweets

Step-by-step explanation:

Sarah to Henry ratio is 5 is to 6, we can say:

Sarah has 5x sweets

Henry has 6x sweets

After Sarah eats "16", the ratio is 1:2, so we can write:

$\frac{5x-16}{6x}=\frac{1}{2}$

Let us solve this equation for "x":

$\frac{5x-16}{6x}=\frac{1}{2}\\2(5x-16)=6x\\10x-32=6x\\4x=32\\x=8$

Henry had "6x" sweets, so Henry had:

6*8 = <u>48 sweets</u>

6 0

3 years ago

If z=4-3i write z squared + 17 in the form a+bi, a,b E R

zysi [14]

$(4-3i)^2+17=\\
16-24i-9+17=\\
24-24i$

4 0

4 years ago