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2 years ago

Help please I need help with 15,16,17,18

Mathematics

1 answer:

N76 [4]2 years ago

4 0

For 15 its just the shape, if you draw a shape based on the dots, compare them. Like left one is a bit taller and wider.

16: for left one median is 8 i think. Right one is 9.5 i think
17: for left one, 13 is an outlier, for right one, 11.5 is outliner. You just write the beginning and ends including and not including those outliers.
18: people in group A were kids and people in group B were adults because their shoe sizes are much higher.

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PLS HELP ME ASAP FOR ALL 6!! (MUST SHOW WORK!!!) +LOTS LOTS OF POINTS!!!

Sedaia [141]

1. -4a-6=-12
add 6 to both sides
-4a-6+6=-12+6
-4a=-6
Divide by -4
$a= \frac{6}{4} = 1 \frac{1}{2}$

2. $\frac{3}{5} z- \frac{1}{4} = \frac{17}{20}$
add $\frac{1}{4}$ to both sides but you will need to make a common denominator on the right
$\frac{3}{5} z- \frac{1}{4} + \frac{1}{4} = \frac{17}{20} + \frac{5}{20}$
$\frac{3}{5}z= \frac{11}{10}$
Divide by $\frac{3}{5}$ which means multiply by the <span>reciprocal</span>.
$\frac{3}{5}* \frac{5}{3} z= \frac{11}{10} * \frac{5}{3}$
$z= \frac{55}{30} =1 \frac{5}{6}$

3. $2 \frac{1}{2}(e-1 \frac{3}{4})=5 \frac{1}{2}$
Distribute
$2 \frac{1}{2} e-4 \frac{3}{8} =5 \frac{1}{2}$
Subtract
$2 \frac{1}{2} e=1 \frac{1}{8}$
Divide
$e= \frac{9}{20}$

4. 3w+7=20
Subtract
3w=13
Divide
$w= \frac{13}{3} = 4 \frac{1}{3}$

5. -.2p+.4=-1.2
Subtract
-.2p=-1.6
Divide
p=8

6. $\frac{y}{4} - \frac{3}{5} = \frac{18}{20}$
Add, made sure you change to common denominator first
$\frac{y}{4} = 1 \frac{1}{4}$
Multiply by 4
y=5

Hope that helps

5 0

2 years ago

Read 2 more answers

Open parenthese x - 5 close parenthese open parenthese x plus 3 close parenthese

RoseWind [281]

(x-5)(x+3) = x^2-2x-15

3 0

1 year ago

There are 50 roses in a tray. There is at least 1 red rose among any 24 randomly selected roses, and there is 1 white rose among

VMariaS [17]

So probability of red rose is 1/24

Probability of white rose is 1/28

TOTAL roses= 50

P(A)=(1/24)
P(B)=1/28=0.035
P(AUB)=1/50

P(A$\cap$ B)=1/24+1/28-1/50

175+150-84/4200
241/4200=0.057

So Probability of white is

0.057-0.035
0.022

8 0

1 year ago

Quadrilateral W X Y Z is shown. All angles are right angles. The length of Z W is m + 6 and the length of W X is 2 m + 4.

Anna71 [15]

answer

Step-by-step explanation:

they have to equal each other foot the shape to be a square

m+6=2m+4

m+2=2m

2=m

8 0

2 years ago

Read 2 more answers

I’m not sure what to put in these please I need help right now!!!!

Anika [276]

Answer:

x = 6, x = 8, x = 4

Step-by-step explanation:

You would just have to come up with a number to replace x in the equation that when you multiply it by 2 it is larger than 6. Sorry if that's not the right answer.

4 0

2 years ago