4 years ago

Is (-3,2) a solution of 7x+9y>-3?

Mathematics

1 answer:

AVprozaik [17]4 years ago

4 0

7(-3)+9(2)>-3
-21+18>-3
-3>-3

No

You might be interested in

he width of a rectangle is 20 units. Can the perimeter P of the rectangle be 64 units when its length x is 11 units

Elodia [21]

No because from what I understand,

2w + 2l = p so

2(20) + 2(11) = 64 if that was true, both sides would be equal.

40+22+=64

62=64 and they are not.

7 0

4 years ago

I need help with all of these. I’m bad at them. Tell me how you solved for this please

Greeley [361]

1) online has the lower unit price

27.25 / 5 = 5.45

32.16 / 6 = 5.3583333.... rounded it would be

5.35

2) The cost of 7 pounds would be 103.18

73.70 / 5 = 14.74 (cost of one pound)

14.74 x 7 = 103.18

3) The scarf in October costed more

13.35 / 3 = 4.45 (one scarf)

22.65 / 5 = 4.53

hope this helps

3 0

4 years ago

Lionel plays trumpet for a minimum of 45 minutes on the days that he practices. If x is the number of days that Lionel practices

natta225 [31]

The inequality is y<span>≥45x. </span>

3 0

4 years ago

Read 2 more answers

Aaron took three times as many pictures as jennifer.jennifer has 16 fewer pictures than aaron.which system of equations can be u

sp2606 [1]

A=Aaron
J=Jennifer
a=3j
j=a-16

6 0

3 years ago

HELP DUE IN 5 MInUTes ASAp

musickatia [10]

Answer:

The expression that calculates the speed in meters per second of an object that travels a distance of 100 m every 20 s is $\mathbf{Speed=\frac{100}{20} }$

Step-by-step explanation:

We are given:

Distance = 100 m

Time = 20 s

We need to find:

Speed

The formula used is: $Speed=\frac{Distance}{Time}$

Putting values and finding the expression

$Speed=\frac{Distance}{Time}\\Speed=\frac{100}{20}$

So, the expression that calculates the speed in meters per second of an object that travels a distance of 100 m every 20 s is $\mathbf{Speed=\frac{100}{20} }$

<em>Note: Kindly recheck your options, As option B is not written correctly.</em>

5 0

3 years ago