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Aneli [31]
3 years ago
13

Mr. Anders was three times as old as Kate 5 years ago. Their total age now is 42 years. How old is Kate now?

Mathematics
1 answer:
katrin [286]3 years ago
6 0
We can write this as two equations. Call Mr. Anders' age A and Kate's age K:
A-5=3(K-5)
A+K=42

Then solve for A in the second equation:
A=42-K

Substitute this into the first equation:
(42-K)-5=3(K-5)
-K+37=3K-15
52=4K
K=13
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Answer : AB and DE are the secants
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3 0
3 years ago
Anu
bija089 [108]

Answer:

Circumference of Circle B=19.625cm

Step-by-step explanation:

The circumference formula is: 2pie(r) = pie(d)

We have diameter of the first circle which is 6. Now, because the diameter of second circle is 25% greater than this,

Hence, we add 25% in 6:

6+25/100 =6+0.25=6.25 cm

Therefore, we have diameter of 6.25 for circle B.

Now, we need to find the circumference of the Circle A.

circumference= pie(d) = pie(6)= 3.14times6= 18.84

Now use the proportional reasoning to find Circumference of Circle B:

circumference of Circle A/diameter Circle A = circumference of Circle B/diameter Circle B

18.84/6=circumference of Circle B/6.25

Cross multiply and divide:

(18.84times6.25)/6 = Circumference of Circle B

Solve:

Circumference of Circle B=19.625cm

Hope this helps!

Mark brainliest if you think i helped! Would really appreciate!

7 0
3 years ago
Can someone help? Thanks :D
Rufina [12.5K]

Answer:

y\leq -x+4

Step-by-step explanation:

The first thing that we can do is look at the equation of the line and then worry about the inequality afterwards.

This line has a y-intercept of 4 and a slope of -1.

This means that the equation of this line would be y=-x+4

Now that we have the equation of the line, we just need to determine which inequality sign to use.

As the shaded region is BELOW the line, we will use a less than (<) sign.

As the line is fully shaded, I can only assume that it is meant to include the line, which would mean that y\leq -x+4 would be the equation for this inequality.

3 0
3 years ago
80 members decreased by 65%
LekaFEV [45]
Do a proportion
65/100= x/80

Cross multiply and divide
80 x 65= 5, 200
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80-52= 28
Answer is 28 members
5 0
3 years ago
Which quadrilateral will always have 4- fold reflectional symmetry
Talja [164]
I'm pretty sure it's the square. The square can be divided into 4 equal parts, each part able to reflect each other.  
5 0
3 years ago
Read 2 more answers
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