1. 45
2.?42?
3.False
4. true
5. true
Answer:
D
Step-by-step explanation:
Divide the composite shape into 2 rectangles.
The dimensions of the 2 rectangles are :
Then, we plug in the values.
1st Rectangle
7 * (14 + 10)
7 * 24
168
2nd Rectangle
9 * 10
90
Then, we add together.
168 + 90 = 258
She needs 3/4 - 1/3 cups
LCD of 3 and 4 is 12 so convert the fractions to 12th's:-
3/4 - 1/3 = 9/12 - 4/12 = 5/12
She needs another 5/12 of a cup of flour , Answer.
Answer:
90°
Step-by-step explanation:
5x+20=9x
20=4x
5=x
<DEG=5x+20+9x=5(5)+20+9(5)=25+20+45=90
Answer:
k = 1.5
Step-by-step explanation:
Pairs: (2, 3), (3, 4.5), (4, 6), (5, 7.5)
If there is a proportionality between two numbers or, as in this case, two variables, then:
y = kx
Where:
k = proportionality constant
The constant can therefore be found by rearranging:
k = y/x
Now, simply substitute any given pair of x- and y- values;
I will use (2, 3) as these are the smallest numbers so easier to use but any of the pairs can be used:
k = 3/2
k = 1.5
