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drek231 [11]
3 years ago
13

Which ratio is equal to 78?

Mathematics
1 answer:
lyudmila [28]3 years ago
5 0

Answer:

78 : 162 = 13 : 27. These two equalities are examples of proportions (equal ratios); it is as simple as that.

You might be interested in
If the Volume of a rectangular prism is 720 what is the width
Bess [88]

Answer:

The width of the rectangular prism is 9 cm.

Step-by-step explanation:

From the formula of the volume of a bar V=whl we see that w=\frac{V}{hl}=\frac{720}{8\cdot 10} = 9 cm.

7 0
2 years ago
Karen's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Karen $5.80 per pound, and type
Elina [12.6K]

Answer:

76

Step-by-step explanation:

A + B = 127

5.80A + 4.25B = 657.55

Solve with substitution.

5.80A + 4.25(127 − A) = 657.55

5.80A + 539.75 − 4.25A = 657.55

1.55A = 117.80

A = 76

8 0
2 years ago
Treble 29 = 160- ?<br><br> By the way, treble is triple. Please answer correctly! This is for Maths.
nika2105 [10]
29 = 160 - x

x = ?

160 - 29 = 131

SO x = 131

Check:-
 
160 - 131 = 29

SO,

29 = 160 - 131.

Hope i helped ya! 

7 0
3 years ago
How do i calculate? All the way to s_75. It’s so long
mina [271]

Answer:

  -675

Step-by-step explanation:

The sum can be broken into parts that you know. Here, one of those parts is the sum of numbers 1 to n. That sum is given by n(n+1)/2.

\displaystyle S_{75}=\sum\limits_{n=1}^{75}{(67-2n)}=\sum\limits_{n=1}^{75}{67}-2\sum\limits_{n=1}^{75}{n}\\\\=75\cdot 67-2\dfrac{75(75+1)}{2}=75(67-76)\\\\=\bf{-675}

__

Another way to do this is to realize the sequence of numbers is an arithmetic sequence with a first term of 65 and a last term of 67-2·75 = -83.

The sum of an arithmetic sequence is found by multiplying the number of terms by their average value. Their average value is the average of the first and last terms.

The average value of those 75 terms is (65 +(-83))/2 = -9, so their sum is ...

  75(-9) = -675

7 0
3 years ago
How much would $500 invested at 5 after 4 years round to the nearest cent
zhannawk [14.2K]
Assuming you are referring to simple interest not compound that that it is annual you would gain $100 putting you at $600
7 0
3 years ago
Read 2 more answers
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