x - number of working hours for parents
y - number of working hours for a computer company
{x + y = 40
{8x + 20y = 464
{x = 40 - y
{8(40 - y) + 20y = 464 || : 4
{x = 40 - y
{2(40 - y) + 5y = 116
{x = 40 - y
{80 - 2y + 5y = 116
{x = 40 - y
{80 + 3y = 116 || - 80
{x = 40 - y
{3y = 36 || : 3
{x = 40 - y
{y = 12
{x = 40 - 12
{y = 12
{x = 28
{y = 12
Answer:
Improper fraction for 8 4/25 is 204/25
Step-by-step explanation:
The numbers in the mixed fraction are defined as follow
8 = whole number
4 = numerator
25 = denominator
Multiply the whole number by the denominator
8 × 25 = 200
Add the product from Step 1 to the numerator
200 + 4 = 204
Write answer from Step 2 over the denominator
204/25
The mixed number 8 4/25 converted to improper fraction is therefore :
Answer:
-1/5
Step-by-step explanation:
3/5 is greater than 2/5, so your answer goes into the negatives
Answer:
In 350 cm there are 3.5 m . Which is the same to say that 350 centimeters is 3.5 meters
Let's solve for c. Step by step.<span><span>a<span>(<span>b−c</span>)</span></span>=d</span>Step 1: Add -ab to both sides.<span><span><span><span>ab</span>−<span>ac</span></span>+<span>−<span>ab</span></span></span>=<span>d+<span>−<span>ab</span></span></span></span><span><span>−<span>ac</span></span>=<span><span>−<span>ab</span></span>+d</span></span>Step 2: Divide both sides by -a.<span><span><span>−<span>ac</span></span><span>−a</span></span>=<span><span><span>−<span>ab</span></span>+d</span><span>−a</span></span></span><span>c=<span><span><span>ab</span>−d</span>a</span></span>Answer:<span>c=<span><span><span>ab</span>−d/</span><span>a
</span></span></span>