All categories

3 years ago

Nine tenths of a sum a money 2.70find the sum of money

Mathematics

1 answer:

irakobra [83]3 years ago

7 0

Answer:

$3.00

Step-by-step explanation:

Setting up an equation with a variable and using key words from the problem will allow you to solve for the sum of money.

'x' = sum money

'nine tenths of a sum' = $\frac{9}{10}x$

'is 2.70': = 2.70

$\frac{9}{10}x$ =2.70

Multiply both sides by the reciprocal of 9/10 (10/9):

(10/9)(9/10)x = 2.70(10/9)

x = 27/9 = $3.00

You might be interested in

Gamal is buying ham and turkey to make sandwiches for a party. At most, he can spend $50, and he must buy more than 8 pounds of

IRINA_888 [86]

H +t = 8
$6h + $7t ≤$50

h+t = 8
h +t-t=8-t
h= 8-t

$6(8-t) + $7t ≤$50
48-6t +7t≤50
48-48+t≤50-48
t ≤ 2
h=6

$6(6) + $7(2) ≤$50
36 + 14 ≤ 50
50≤50

He can buy 6 pounds of ham and 2 pounds of turkey

3 0

3 years ago

Read 2 more answers

11. In circle H, if mDHG = (11x - 36)* and mGHF = (x + 12), find mDG.

Dima020 [189]

mˆDG=151∘∘

An arc’s length means the same commonsense thing length always means — you know, like the length of a piece of string

4 0

3 years ago

The quantity y varies directly with the square of x and inversely with z. When x is 9 and z is 27, y is 6. What is the constant

ira [324]

$\bf \qquad \qquad \textit{double proportional variation}
\\\\
\begin{array}{llll}
\textit{\underline{y} varies directly with \underline{x}}\\
\textit{and inversely with \underline{z}}
\end{array}\implies y=\cfrac{kx}{z}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

$\bf \stackrel{\textit{\underline{y} varies directly with the square of \underline{x} and inversely with \underline{z}}}{y=\cfrac{kx^2}{z}}
\\\\\\
\textit{we also know that }
\begin{cases}
x=9\\
z=27\\
y=6
\end{cases}\implies 6=\cfrac{k9^2}{27}
\\\\\\
\cfrac{27\cdot 6}{9^2}=k\implies 2=k$

4 0

2 years ago

The map ratio of a map is 1: 50000. find the length on the ground represented by 6.4cm on the map

luda_lava [24]

Answer:

320,000

Step-by-step explanation:

6.4cm on the map would be 320,000 (ft I'm assuming) and I found that by multiplying 50,000x6.4.

3 0

3 years ago

Can someone help me pretty please?

Dahasolnce [82]

Answer:

nopee.it is your work try hard or practice in your textbooks or notebooks.

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers