Answer:
flour $42 , bag of sugar $58
Step-by-step explanation:
let f represent flour and s represent sugar, then
7f + 5s = 584 → (1)
5f + 3s = 384 → (2)
Multiplying (1) by 3 and (2) by - 5 and adding will eliminate s
21f + 15s = 1752 → (3)
- 25f - 15s = - 1920 → (4)
Add (3) and (4) term by term to eliminate s , that is
- 4f = - 168 ( divide both sides by - 4 )
f = 42
Substitute f = 42 into either of the 2 equations and solve for s
Substituting into (1)
7(42) + 5s = 584
294 + 5s = 584 ( subtract 294 from both sides )
5s = 290 ( divide both sides by 5 )
s = 58
The cost of a bag of flour is $42 and cost of sugar is $58
I don’t really know if this is a question but if ur asking the variable of an unknown number then it’s x??
Answer:
B 86.54%
Step-by-step explanation:
There are 156 suv's
135 are driven by women
135/156 =.86538 = 86.54%
Answer:
Yes
Step-by-step explanation:
First off, let's use an example with the same equivalence:
If you divide the denominator by the numerator you have to get 3, otherwise, it's not equivalent.
The constant of proportionality between the denominator and the numerator, if we use <em>x</em> and <em>y,</em> is:
So, just like the example and explanation I used, 3 divided 1 is 3 and 6 divided by 2 is 3.