All categories

3 years ago

Will give 50 points for this answer. Perform the indicated operation. 22 6/7 ∙ 1 1/2

Mathematics

1 answer:

Varvara68 [4.7K]3 years ago

5 0

Answer:

22 $\frac{6}{7}$ × $\frac{11}{2}$ = 125 .71

Step-by-step explanation:

22 $\frac{6}{7}$ × $\frac{11}{2}$

={[ ( 22 × 7) + 6] ÷ 7 } × $\frac{11}{2}$

= $\frac{160}{7}$ × $\frac{11}{2}$

= $\frac{1760}{14}$

= $\frac{880}{7}$

= 125 .71

You might be interested in

Question 5 (a) Complete the square for x2 - 10x + 3. (b) Hence solve x2 - 10x + 3 = 0

earnstyle [38]

Answer:

B olabilir bence b sikki

7 0

2 years ago

Dominic makes bread to sell at his local farmers' market. It costs $1.58 for Dominic to make a loaf of bread. How much money wil

Ronch [10]

Answer:

$1.58X12=$18.96

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

3x square+6y Square when X=0 and y=2 with steps pls

Sauron [17]

Answer:

If the equation is 3x^2+6y^2, when x=0 and y=2.

Then, 3(0)^2+6(2)^2=

So, 0+6(4)= 24

Therefore, the answer is 24.

Step-by-step explanation:

8 0

2 years ago

Please help me with the questions I have please help me with the question mark you as a brnlist

Harlamova29_29 [7]

Answer:

x = 21

Step-by-step explanation:

You can solve this problem by using similar triangles. You can tell that the two triangles are similar by AAA (since two angles are the same, the third must be too).

Now that we've established that the triangles are similar, you need to identify the corresponding sides:

12 corresponds to 28

9 corresponds to x

In order to find x, you'll need to find the scale factor, which you can find by dividing 28 by 12:

28 ÷ 12 = 7/3

Now that you know that 7/3 is the scale factor, you can multiply it by 9 to find x:

9 × 7/3 = x

x = 63/3

x = 21

4 0

2 years ago

Mary wants to make 20 gallons of a 52% acid solution by mixing together a 84% acid solution and a 4% acid solution. How much of

Setler [38]

Answer:

12 gallons 84%
8 gallons 4%

Step-by-step explanation:

I like to use an "X-diagram" to solve mixture problems. On the left side are the constituents of the mix; in the middle is the result of the mix; and on the right side are the differences between the numbers on each diagonal. These differences are the ratio numbers for the mix.

Here, that means the ratio of 84% solution to 4% solution is ...

48 : 32 = 12 : 8

Note that the last two "ratio numbers" were chosen so their sum is 20, hence they represent the number of gallons of the corresponding constituent in the mix. (The sum of the first two ratio numbers is 48+32=80, so to get a sum of 20, we divide each by 4.)

Mary must use ...

12 gallons of 84% acid solution
8 gallons of 4% acid solution

You may note that this solution takes much longer to explain than to do. The math here can all be done without a calculator.

_____

Check

12 × 84% + 8 × 4% = 10.40 = 20 × 52%

_____

Usual Solution

A more conventional approach would be to assign x to the amount of 84% solution needed. Then the number of gallons of acid in the mix is ...

0.84x + 0.04(20 -x) = 0.52(20)

0.80x + 0.8 = 10.4 . . . . simplify

0.80x = 9.6 . . . . . . . . . . subtract 0.8; next, divide by 0.8

x = 9.6/0.8 = 12 . . . . gallons of 84% acid

20-x = 8 . . . . . . . . . . gallons of 4% acid

3 0

3 years ago