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3 years ago

Please tell me an easy explanation on how to answer this correctly.

Mathematics

2 answers:

Pavlova-9 [17]3 years ago

6 0

Answer:

-3 - - 6 = 3

2 - - 8 = 10

Step-by-step explanation:

You use keep change change. When subtracting negative you get the first number change the sign to the opposite, then change the second numbers sign

<h2>example - -3 - - 6</h2><h2> -3 + 6</h2><h2> 2 - - 8</h2><h2> 2 + 8</h2>

asambeis [7]3 years ago

5 0

-3-(-6)=9 -9
2-(-8)= -6

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4x – 3y=8<br> 2. 5x – 2y = -11

AlladinOne [14]

Answer:

$x = -7$

$y = - 12$

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

$x = \frac{3}{4}y + 2$

Plug this expression for x in the bottom equation to get

$5( \frac{3}{4}y + 2) - 2y= - 11$

We expand to obtain

$\frac{15}{4} y + 10 - 2y = - 11$

Multiply through by 4

$15y + 40 - 8y = - 44$

Group similar terms

$15y - 8y = - 44 - 40$

$7y = - 84$

$y = - \frac{84}{7} =-12$

This means

$x = -12\times \frac{3}{4} + 2$

$x = - 7$

6 0

4 years ago

Help me please!!!!!!!!!!!!

iVinArrow [24]

Answer: 0.25g<2.50.... g<10

Step-by-step explanation: Let us say that the number of gumballs bought is represented by the variable g. In this case, the question is asking how many gumballs can be bought without surpassing the price of $2.50. We know that each gumball is $0.25, therefore the number of gumballs we buy times $0.25 has to be less than $2.50. Hence, the inequality would be 0.25g<2.50. If we were to solve this then g<2.50/0.25-----> g<10. In conclusion, the number of gumballs you can buy has to be less than 10. Thank you!

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3 years ago

2-94. Multiple choice: which of the following numbers could not represent a probability? Write a sentence explaining why they co

ziro4ka [17]

Answer:

it is A

Step-by-step explanation:

it has to be a because you cant have a negative chance at chosing something it would just be zero B.you have a 1.00 chance at chosing something C.you have a 1 oit of 100 chance at chosing something and D.you have a 1 out of 10 chance at chosing something

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3 years ago

Natalie made blueberry muffins for a bake sale. Each muffin cost her about $0.25 to make. She spent $8.75 to make all of the muf

Inga [223]

Answer:

26.25

Step-by-step explanation:

she sold 35 muffins

8 0

3 years ago

Read 2 more answers

I need help now btw i am in middle school