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77julia77 [94]
3 years ago
11

Can u plz help me?...

Mathematics
1 answer:
Westkost [7]3 years ago
3 0

Answer:

a  4 1/5

b  7 7/24

Step-by-step explanation:

a  7/9 * 5 2/5

Change the mixed number to an improper fraction

7/9 * (5*5+2)/5

7/9 * 27/5

Rewrite

7/5 * 27/9

7/5 * 3

21/5

Change this back to a mixed number

5 goes into 21 4 times  (4*5 = 20 ) with 1 left over

4 1/5


b  1 3/4 * 4 1/6

Change to improper fractions

(4*1+3)/4  * (6*4+1)/6

7/4 * 25/6

175/24

Change back to a mixed number

24 goes into 175 7 times  (7*24 =168 ) with 7 left over

7 7/24

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Help please! I have to answer what is wrong with this ,but I am getting really confused.
Aliun [14]

Answer:

x = 113

Step-by-step explanation:

Vertical angles are congruent. To the left of 113 would be 67 but x is not.

8 0
3 years ago
Factorise x squared + 12 x + 35
Ksenya-84 [330]
5 and 7 add to make 12 and multiply to make 35 so those are the numbers that will be used:
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Hope this helps :)
5 0
4 years ago
Jane builds a ramp made of a triangular prism and a rectangular prism. What is the volume
Alex787 [66]

Answer:

Correct option: third one ->  11.5 m3

Step-by-step explanation:

To find the volume of the ramp, first we need to find the volume of the rectangular prism and the volume of the triangular prism:

V_rectangular = 4m * 2m * 1m = 8 m3

V_triangular = (2m * 3.5m * 1m) / 2 = 3.5 m3

Now, to find the volume of the ramp, we just need to sum both volumes:

V_total = V_rectangular + V_triangular = 8 + 3.5 = 11.5 m3

Correct option: third one.

6 0
4 years ago
Read 2 more answers
What is the meaning of the unknown factor and quotient? <br> 24 divided into 4=___<br> 4x___=24
Alborosie
Your answer will be 6. The reason it is six is that 24/6 = 4 and 4 X 6=24.
7 0
4 years ago
What % of 1 meter is 70 meter​
Marrrta [24]

well, let's say 1 meter is the 100%, now, if we know that 1 is 100%, what percentage is 70?

\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 1&100\\ 70&x \end{array}\implies \cfrac{1}{70}=\cfrac{100}{x}\implies x =7000

5 0
4 years ago
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