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Delicious77 [7]
3 years ago
15

Please someone help on 10 11 12

Mathematics
1 answer:
SOVA2 [1]3 years ago
6 0
The last one for 11
And 54 is number 12 answer
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A student scores 88,73,81,75, and 78 on the first five science tests of the year. What is the minimum score the student needs to
NeTakaya

Answer:84

Step-by-step explanation: add all the numbers together you should get a total of 395

Step 2 divide 395 by 5 = 79 that’s your average so far

Step 3 ( x the 6th test)

5• 79 + x =80 You will first multiply

6 5•79 = 395

Then 80 • 6 =480

Then subtract 480-395 = 85 is the lowest you will need to make

5 0
3 years ago
Read 2 more answers
120 pianists compete in a piano competition. (a) In the first round, 30 of the 120 are selected to go on to the next round. How
MissTica

Answer:

Step-by-step explanation:

Given

There are 120 Pianist in a competition

(a)In first round 30 pianist is selected

this can be done in ^{120}C_{30} ways

=\frac{120!}{(120-30)!30!}

=\frac{120!}{90!30!}

(b)In the second round 5 pianist is selected out of 30

this can be doe by =\frac{30!}{(30-5)!5!}

=\frac{30!}{25!5!}

=142,506

8 0
4 years ago
Show your work!! *grade 9 math work*
Aloiza [94]

Answer:

A = 5x · (3x + 7)

= 5x(3x) + 5x(7)

= 15x² + 35x meters

6 0
3 years ago
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Suppose a charity event serves a prix fixe dinner that consists of one from each category: (1) soup or salad (not both), (2) app
VladimirAG [237]

Answer:

3840

Step-by-step explanation:

Using the fundamental counting principle

The restaurant is offering five kinds of soup, three kinds of salad, four kinds of appetizers, six entrees, five desserts, and four beverages.

There are 5 independent events happening (5 prixe dinners)

(1) soup or salad (not both)

We have five kinds of soup, three kinds of salad

soup or salad (not both), = 5 + 3

= 8

(2) appetizer = 4

(3) entrees = 6

(4) dessert = 5

(5) Beverage = 4

Hence,

8 × 4 × 6 × 5 × 4

= 3840

The number of different prix fixe dinners are possible is 3840

5 0
3 years ago
Please help me!!!!!!!!
Ainat [17]
You have to multiply all the numbers to get the exact number and then you have to divide and multiply
8 0
3 years ago
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