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Natali [406]
3 years ago
8

Evaluate the expression when x = 1/4 and y = 8 3xy

Mathematics
1 answer:
Blizzard [7]3 years ago
8 0
6 because 3 times 1/4 is 0.75 and 0.75 times 8 is 6
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The French Club ordered 16 pizzas for a party. Each pizza had 6 slices. Jose ate 7 of the slices. How many slices were left for
NikAS [45]
16 x 6 = 96
96 - 7 = 89
or
14 pizzas and 5 slices

Answer : 89 slices
4 0
3 years ago
three times the sum of a number x and 3 is 10 plus twice the difference of the number x and another number y
Nadya [2.5K]

Step-by-step explanation:

We have 3(x + 3) = 10 + 2(x - y).

=> 3x + 9 = 10 + 2x - y

=> x = 1 - y

=> y = 1 - x.

(Rewritting it as a mathematical statement is the 1st line)

4 0
3 years ago
What would be the least amount of money needed to purchase exactly 19 muffins?
Lady bird [3.3K]
B: 9.25

12/19=5.75/x
X=9.10 but least amount which is 9.25
7 0
2 years ago
Read 2 more answers
Imagine you are teaching a younger student how to factor. Describe in full sentences what you would say to teach the young stude
djyliett [7]

Answer:

x^2+ 4x - 21 =(x-3)(x+7)

Step-by-step explanation:

To factor the trimonial: x^2+ 4x - 21, we follow these steps:

Step 1: Multiply the first and last term

-21 \times x^2=-21x^2

Step 2: List out product factors of the term derived above

-21=-1 \times 21\\ -21=-3 \times 7\\-21=3 \times -7\\-21=1 \times -21

Step 3: Determine which of the factors sum up to the middle term 4x

The required product is: -3 and 7

Therefore: -3x+7x=4x

Step 4: Replace the middle term by the expression derived in step 3 and factorize.

x^2+ 7x -3x- 21\\=x(x+7)-3(x+7)\\=(x-3)(x+7)

3 0
3 years ago
Which expression gives the best estimate of the product of 281 x 2.16?
vagabundo [1.1K]

Answer:

C

Step-by-step explanation:

281 rounds up to 300

2.16 rounds down to 2

300*2=600

so 600 is your estimate

8 0
3 years ago
Read 2 more answers
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