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alex41 [277]
3 years ago
11

I would really like to get some help :)

Mathematics
2 answers:
Maru [420]3 years ago
6 0

Answer: I don't know about the formula, but consider the logic below.

Step-by-step explanation:

Martina = 12

Joey = 0

12 x 3 = 36

36 - 3 = 33

If Joey was 21, Martina would be 33.

Nezavi [6.7K]3 years ago
3 0

Answer:

y = 15

Step-by-step explanation:

in 3 years Martina would be 15 and joey would be 5.

5 · 3 is 15 so

x being joey

y being martina

x · 3 = 15

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Sara's savings account balance changed by -$34 one week and by -$67 the next week .Which amount represents the greater change?
fomenos
<u />The greater change is represented by the absolute magnitude

|-34| = 34
|-67| = 67

67 > 34

<u><em>-67 represents the greater change</em></u>
4 0
3 years ago
Read 2 more answers
in the balcony of a theatre there are 420 seats. the number of seats in each row is 14 more than the number of rows. find the nu
ki77a [65]
420 divided by 14 = 30


There are 30 rows
7 0
3 years ago
Hello hope you are well can I have some help on this factorise question please 4f2 + f
lapo4ka [179]

Answer:

f(4f + 1)

Step-by-step explanation:

Given

4f² + f ← factor out f from each term

= f(4f + 1)

6 0
4 years ago
Pwease help i will give you brain thing if its correct ♡
Oliga [24]

Answer:

1. A, B, C, E

2.Im not sure I think A

hope this helps

have a good day :)

Step-by-step explanation:

6 0
3 years ago
Write the equation of the perpendicular bisector of CD.
Luda [366]
You haven't provided the coordinates of C and D, therefore, I cannot provide an exact solution. However, I'll tell you how to solve this problem and you can apply on the coordinates you have.

The general form of the linear equation is:
y = mx + c
where:
m is the slope and c is the y-intercept

1- getting the slope:
We will start by getting the slope of CD using the formula:
slope = (y2-y1) / (x2-x1)
We know that the line we are looking for is perpendicular to CD. This meas that the product of their slopes is -1. Knowing this, and having calculated the slope of CD, we can simply get the slope of our line

2- getting the y-intercept:
To get the y-intercept, we will need a point that belongs to the line.
We know that our line passes through the midpoint of CD.
Therefore, we will first need to get the midpoint:
midpoint = (\frac{x1+x2}{2} ,  \frac{y1+y2}{2})

Now, we will use this point along with the slope we have to substitute in the general equation and solve for c.

By this, we would have our equation in the form of:
y = mx + c

Hope this helps :)


8 0
3 years ago
Read 2 more answers
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