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2 years ago

Use the orders of operations to simplify 10(3.25 - 1.25) + 3/4

Mathematics

2 answers:

klasskru [66]2 years ago

7 0

Answer:

Answer is D

Step-by-step explanation:

dybincka [34]2 years ago

4 0

Answer:

20 3/4

Step-by-step explanation:

10(3.25 - 1.25) + 3/4

PEMDAS says parentheses first, subtract inside the parentheses

10(2) + 3/4

Then multiply

20 + 3/4

Add 20 + 3/4

20 3/4

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Jared's Cafe uses 5 bags of coffee every day. How many days will 1/2 of a bag of coffee last?

Inessa05 [86]

Answer:

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2 years ago

Please help me I really need help I’m gonna give 33 points for this please help

lidiya [134]

Answer:

Step-by-step explanation:

1a) use letter "P" for perimeter

1b) use letter "L" or "x"

1c) Formula: P=4L or P=4x

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3 years ago

Read 2 more answers

|x-3|+4=12 show all steps <br>Please

SOVA2 [1]

Answer:

|x-3|+4 = 12

|x-3| = 12-4

|x-3| = 8

now solve for both positive and negative values

x - 3 = 8 | x - 3 = -8

x = 8 + 3 | x = - 8 + 3

x = 11 | x = -5

solution set : { 11, -5 }

Step-by-step explanation:

3 0

3 years ago

1000 was invested at 5.5% interest, compounded annually. After sometime the amount had grown to 1550. How long was the money inv

scZoUnD [109]

compound interest equation for annually compounded

$A=P(1+r)^t$

A=final amount

P=principal

r=rate in decimal

t=time in years

given that

A=1550

P=1000

r=5.5%=0.055

find t

$1550=1000(1+0.055)^t$

divide both sides by 1000

$1.55=1.055^t$

take ln of both sides

$ln(1.55)=ln(1.055^t)$

use ln rule $ln(a^b)=b(ln(a))$

$ln(1.55)=t(ln(1.055))$

divide both sides by ln(1.055)

$\frac{ln(1.55)}{ln(1.055)}=t$

using a calculator, we get that t=8.18544 yrs

so about 8.2yrs

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2 years ago

Solve for a in terms of F and m: F=ma

Elena-2011 [213]

To solve for a, you must get a by itself on one side of the equation. Now, a is "joined" to m by multiplication. To "separate" them, use the inverse operation, division.

Divide both sides of the equation by m.

$F=ma \\ \frac{F}{m}=\frac{ma}{m} \\ \frac{F}{m}=a \\ a=\frac{F}{m}$

5 0

3 years ago