Step-by-step explanation:
[7 + (-2)] * (-3)
= 7(-3) + (-2)(-3)
= -21 + 6
= -15. (C)
Answer:
3 5
/6
Step-by-step explanation:
Conversion a mixed number 5 1
/2 to a improper fraction: 5 1/2 = 5 1/
2
= 5 · 2 + 1
/2 = 10 + 1
/2 = 11
/2
To find new numerator:
a) Multiply the whole number 5 by the denominator 2. Whole number 5 equally 5 * 2
/2
= 10
/2
b) Add the answer from previous step 10 to the numerator 1. New numerator is 10 + 1 = 11
c) Write previous answer (new numerator 11) over the denominator 2.
Five and one half is eleven halfs
Conversion a mixed number 1 2
/3 to a improper fraction: 1 2/3 = 1 2/
3 = 1 · 3 + 2
/3 = 3 + 2
/3
= 5
/3
To find new numerator:
a) Multiply the whole number 1 by the denominator 3. Whole number 1 equally 1 * 3
/3
= 3
/3
b) Add the answer from previous step 3 to the numerator 2. New numerator is 3 + 2 = 5
c) Write previous answer (new numerator 5) over the denominator 3.
One and two thirds is five thirds
Subtract: 11
/2 - 5
/3
= 11 · 3
/2 · 3 - 5 · 2
/3 · 2 = 33
/6 - 10
/6 = 33 - 10
/6
= 23
/6
Simplify : 23/6 divide =3 5/6
C is the correct answer.
The more trials of an experiment that are performed, the closer the experimental probability is to the theoretical probability. Therefore the choice with the most trials, C, is the correct answer.
Marty is helping make floral centerpieces for the sports banquet.
The guidelines tell him how many of each flower to use in one centerpiece.
If he follows the guidelines, which statement is true?
Math item stem image
CLEAR CHECK
The ratio of lilies to carnations is 3 to 2.
The ratio of carnations to daffodils is 2 to 3.
For 12 centerpieces, he will need 36 carnations.
For 24 centerpieces, he will need 36 lilies.
