Answer:
63/8 or 7 7/8
Step-by-step explanation:
-3/2 * -5 1/4
Change the mixed number into an improper fraction
-3/2 * -21/4
Multiply straight across the numerators and denominators
63/8
Answer:
140 coins total
Step-by-step explanation:
Straightforward, this reads "7 is 5% of how many?". Algebraically, the word "is" means an equals sign, and the word "of" means you multiply. Of course, the 5% needs to be in decimal form. Taking the sentence above, algebraically it is: 7 = .05x. Divide by .05 on both sides to get x = 140
Answer:
8(4-x)
Step-by-step explanation:
You're multiplying the difference of four and a number (4-x) by eight (8). So writing as an expression would look like 8(4-x).
Answer:
x = 11
Step-by-step explanation:
4 - 1 / x - 7 (simplify)
3 / x - 7 = 3/4 (multiply by x - 7)
3 = 3/4 (x - 7)
3 = 3/4x - 5.25 (add 5.25 to both sides)
8.25 = 3/4x (divide both sides by 8.25)
x = 11
sub into the formula to check:
4-1 / 11 - 7
3 / 4
