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3 years ago

100 Points Again! solve the equations in these 2 pictures.

Mathematics

2 answers:

Andreas93 [3]3 years ago

8 0

Answer:

1) c 2) b

Step-by-step explanation:

Hope this helps!

VikaD [51]3 years ago

6 0

Answer:

Step-by-step explanation:

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Can anyone help me with this?<br>

artcher [175]

Answer: X= 3^-1

X= -0.75

Step-by-step explanation:

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3 years ago

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Assignment due soon! Need help

Natali [406]

Answer: 30°

Step by step explanation:
1) Supplementary angles add up to 180°
2) (2x+10)+(5x-40)=180
3) solve for x
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3 years ago

A lamppost casts a shadow of that is 15 yards long. A 3-foot-tall mailbox casts a shadow that is 5 yards long. How tall is the l

fgiga [73]

Use the proportion x/15 = 3/5 (height of object/length of shadow) and cross multiply. 5x = 45. divide both sides by three and x=9.

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4 years ago

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A cyclist rides 225 m each minute.About how long does it take to ride 15km? Show all fo your work

Elan Coil [88]

Speed = 225 metres per minute

Distance = 15 km = 15,000 metres

---------------------------------------------------

s=d/t

ts=d

Therefore: t=d/s

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Time = Distance / Speed

Time = (15,000 metres) / (225 metres per minute)

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Let's work it out:

$Time=\frac { 15,000\quad metres }{ \frac { 225\quad metres }{ 1\quad minute\left( s \right) } } \\ \\ =\frac { 15,000\quad metres }{ 1 } \cdot \frac { 1\quad minute\left( s \right) }{ 225\quad metres } \\ \\ =\frac { 15,000 }{ 225 } minutes$

$\\ \\ =\frac { 200 }{ 3 } minutes\\ \\ \frac { 200 }{ 3 } minutes\quad =\quad 66\quad minutes,\quad 40\quad seconds$

6 0

4 years ago

Solve 4(2x-3)=6x+2<br> I don't understand the steps pls

Marysya12 [62]

Answer: x = 7

Step-by-step explanation:

4(2x-3) = 6x+2 <--distribute the 4

8x - 12 = 6x + 2 <---add 12 to both sides

8x = 6x + 14 <--- subrtract 6x from both sides

2x = 14 <--- divide by two

x = 7

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4 years ago