All categories

3 years ago

What value is equivalent to -4(-6/8 divided by 1/2)

Mathematics

2 answers:

alexira [117]3 years ago

6 0

Answer:

Step-by-step explanation:

-4( -6/8 ÷ 1/2)

$=-4*(\frac{-6}{8}*\frac{2}{1})\\\\=-4*(\frac{-6}{4})\\\\=(-1)*(-6)\\\\=6$

qwelly [4]3 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

Joe weights 20lbs .less than twice Jeff's weight. If Jeff would gain lbs,.then together they would weight 250lbs. how much does

Hoochie [10]

230Ibs because altogether is 250Ibs and. Joe is 20Ibs so you subtract 250 by 20 and you get 230Ibs

6 0

3 years ago

Log base 2 power (5x+7) =5

Vsevolod [243]

If we go back to the defenition of logs, we can find this solution quickly.

What you're saying when you say ㏒₂(5x+7) = 5 is that

2⁵ = 5x+7

32 = 5x+7

25 = 5x

x = 5

4 0

4 years ago

One serving of soybeans contains 14 grams of protein and 8 grams of fat. One serving of rice contains 4 grams of protein and 1/2

mina [271]

Answer: 1.8 servings of soybean and 1.2 servings rice will be needed.

Step-by-step explanation:

Let x be the number of soybeans and y be the number of rice.

Then , According to the question , we have

$14x+4y=30\\\Rightarrow\ 7x+2y=15..................................(1)\\\\ 8x+\frac{1}{2}y = 15\\\Rightarrow\ 16x+y=30.............................(2)$

Multiply 2 on both the sides of equation (2), we get

$32x+2y=60................................(3)$

Subtract equation (2) from equation (3), we get

$25x=45\\\\\Rightarrow\ x=1.8$

Put x = 1.8 in equation (2), we get

$16x+y=30\\\\\Rightarrow\ y=30-16x\\=30-16(1.8)=1.2$

Hence, 1.8 servings of soybean and 1.2 servings rice will be needed.

8 0

4 years ago

Simplify 5x - 4x - 6x

DedPeter [7]

I believe the answer would be 5x - 10x

Hope this helps <3

6 0

3 years ago

Read 2 more answers

Find the population standard deviation (σ not S) for the data set: {75,80,90,95,75,85,55,80,90,95}

Marianna [84]

The steps to work out standard deviation is as follows

Step 1: Find the mean of the data

$\frac{75+80+90+95+75+85+55+80+90+95}{10}=82$

Step 2: Subtract the mean from each data value

$75-82=-7$
$80-82=-2$
$90-82=7$
$95-82=13$
$75-82=-7$
$85-82=3$
$55-82=-27$
$80-82=-2$
$90-82=8$
$95-82=13$

Step 3: Add up the answers from step 2 $\sqrt{2.9}=1.7$

$-2+(-2)+7+13+(-7)+3+(-2)+(-2)+8+13=29$

Step 4: Divide the answer is step 3 by the number of data

$\frac{29}{10}=2.9$

Step 5: Square root the answer in step 4

$\sqrt{2.9} =1.7$

5 0

4 years ago