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kolezko [41]
3 years ago
5

If x=-4 what is the value of the following expression?

Mathematics
1 answer:
Gre4nikov [31]3 years ago
6 0

Answer:

2x^2 +3x -2

18

12

-22

-46

Step-by-step explanation:

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at a summer camp 23 of the boys and 17 of the girls can swim there nine boys 11 girls at the camp who cannot swim. what is the r
Sedbober [7]

Answer:

4×30+5×30=120+150=270

Step-by-step explanation:

looking at the last row, we can see that the total number of students will be 4×30+5×30=120+150=270

8 0
3 years ago
Michael can buy 4 sandwiches and 3 cups of coffee for $23.75. Amy can buy 2 sandwhiches and 5 cups of coffee for $19.75 how much
Kobotan [32]

Answer: The cost of one sandwich is $4.25 and the cost of one cup of coffee is $2.25.

Step-by-step explanation:

Let x be the cost of one sandwich and y be the cost of one cup of coffee.

By considering the given situation, we have the following equations :-

4x+3y=23.75.................(1)\\\\2x+5y=19.75................(2)

Multiply 2 on both sides of equation (2) , we get

4x+10y=39.5................(3)

Subtract equation (1) from equation (3), we get

7y=15.75\\\\\Rightarrow\ y=\dfrac{15.75}{7}=2.25

Put value of y in (1), we get

4x+3(2.25)=23.75\\\\\Rightarrow\ 4x+6.75=23.75\\\\\Rightarrow\ 4x =17\\\\\Rightarrow\ x=4.25

Hence, the cost of one sandwich is $4.25 and the cost of one cup of coffee is $2.25.

8 0
3 years ago
❤️❤️__pvx-biov-wdv___❤️❤️truth an dare❤️can any girl from Australia join and play with me?​
Sveta_85 [38]

Step-by-step explanation:

not possible, but thanks for the points..!

5 0
3 years ago
What is the image below simplified as a fraction?
marysya [2.9K]

Answer:

159.8195397043133

Step-by-step explanation:

2²⁰

------------------ = 159.8195397043133

3⁸

6 0
3 years ago
Which numbers have a digit in the ones place that is 1/10 of the value of the digit in the tens place 9077 9884 1303 1055 3222
ANTONII [103]

The numbers that have a digit in the ones place that is 1/10 of the value in the tens place are 1,055 and 3,222.

<h3>What digits are in the ones place?</h3>

The ones place refers to the position immediately before the decimal.

The digit in the tens place is the number immediately left of the ones place.

The numbers that have ones digits that are 1/10 of the digits in the tens place that are 1,055 and 3,222.

That is because 5 is 1/10 of the tens value of 50 and 2 is 1/10 of the 20 in the tens place.

Find out more on the positions of digits at brainly.com/question/579274

#SPJ1

4 0
2 years ago
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