3 years ago

How to write 43.78 in word form

Mathematics

1 answer:

tiny-mole [99]3 years ago

3 0

Fourty-three point seventy-eight thousandths

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Find x, if 3x − 5(y + x ) ^2 = 16 and 4x + 2(y + x )^ 2 = 30

lana66690 [7]

Answer:

x = 7

Step-by-step explanation:

Start by solving for $(y+x)^2$ which is a common expression for both equations. Then in the first equation:

$3\,x5\,(y+x)^2=16\\3x-16=5\,(y+x)^2\\(y+x)^2=\frac{3\,x-16}{5}$

and in the second equation:

$4\,x+2\,(y+x)^2=30\\2\,(y+x)^2=30-4\,x\\(y+x)^2=15-2\,x$

Now we make the two $(y+x)^2$ expressions equal so we get:

$\frac{3\,x-16}{5} =15-2\,x\\3\,x-16=75-10\,x\\13\,x=75+16\\13\,x=91\\x=7$

8 0

3 years ago

Mary has an equal number of dimes and quarters. If she has $2.10 in all, how many coins of each does she have?

77julia77 [94]

Answer:

Step-by-step explanation:

4 quarters

1 dime

6 0

2 years ago

Se distributive 8 x (5 + 7)

Sonbull [250]

8 × ( 5 + 7 ) =

= 8×5 + 8×7

= 40 + 56

= 96

5 0

3 years ago

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PLEASE HELP ME QUICKLY!!!!!

Gwar [14]

Y=2/5+3; u gotta find two points, count the rise over run and find the y-intercept

3 0

2 years ago

Evaluate

SCORPION-xisa [38]

Value of the expression will be 7

Explanation

Given value of the variables are : $p= \frac{1}{2}$ and $q=7$

Given expression: $8p+3q-18$

So, plugging the values of $p$ and $q$ into the above expression, we will get...

$8p+3q-18\\ \\ = 8(\frac{1}{2})+3(7)-18\\ \\ =4 + 21-18\\ \\ =25-18\\ \\ =7$

So, the value of the expression will be 7.

5 0

2 years ago

Read 2 more answers