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inysia [295]
3 years ago
13

Can someone help me do this question?

Mathematics
2 answers:
olasank [31]3 years ago
7 0

3(-2x-1)=2(x+5)

-6x-3=2x+10

-8x=13

x=-13/8

Sonbull [250]3 years ago
7 0
X=5 I kind of did this by trail and error but here’s my working outs
5-4=1
3/1=3
5-2=3
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alright so I got the answer from here but I still can't figure out how we got 12p? can somebody explain step by step pls​
Andreas93 [3]

There's no 12p in the simplification

(2p+3)^{2} =(2p)^{2} +3^{2} = 4p^{2} +9

3 0
3 years ago
Jonathan's parents told him that for every 5 hours of Academic Prep work he completes, he would be able to play 3 hours of video
Over [174]

Answer: Jonathan spends more time playing video games because 3/5 of the time he is playing video games, while Lucas is only playing thirty minutes out of sixty, which simplifies into 1/2. Jonathan plays 60% of the time and Lucas plays 50%.

Step-by-step explanation:

7 0
3 years ago
A typical marathon is 26.2 miles. Allan averages 12 kilometers per 1 hour when running in marathons. How long does it take for A
cluponka [151]

Answer:

3.5 hours

Step-by-step explanation:

Given: Distance= 26.2 miles

           Speed= 12 km/h

First lets convert the unit of speed from kmh to mph.

Remember, 1 mile= 1.609 km

∴ For speed of 12 km/h= \frac{12}{1.609}= 7.45\ mph

Speed= 7.45 mph

Next, find time taken by Allan to complete a Marathon.

Time= \frac{Distance}{speed}

⇒ Time= \frac{26.2}{7.45}

∴ Time= 3.516 hours ≅ 3.5 h (nearest tenth)

∴ Allan took 3.5 hours to complete marathon.

8 0
4 years ago
A sector of a circle of radius is 15Cm, and angle 216 degrees is bent to form a cone. What is base radius of the cone and the ve
-Dominant- [34]

Answer:

Step-by-step explanation:

Radius r = 15

Circumference = 2πr = 30π cm

Circumference of cone = arc length of sector

= 30π × 216°/360°

= 18π cm

Radius of base of cone = 18π/(2π) = 9 cm

Slant height of cone = radius of circle = 15 cm

Height of cone = √(15² - 9²) = 12 cm

3 0
3 years ago
(PLEASE HELP!!!)Where does the following graph have clusters of data? Select all that apply.
grigory [225]

Answer:

1-5

Step-by-step explanation:

It has clusters from 1 to 5 because that is where all the dots are that are not seperated.

8 0
3 years ago
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