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sdas [7]
3 years ago
8

Pls help me on these 2 questions !!

Mathematics
1 answer:
motikmotik3 years ago
3 0

Answer:

1. 23

2. 8

Step-by-step explanation:

☆Cross multiply.

\frac{2}{10}  =  \frac{4}{a - 3}  \\  \\ 40 = 2(a - 3) \\ 40 = 2a - 6 \\   \frac{ + 6  =  \:  \:  \:  \:  \:  \:  \:  \:  + 6}{ \frac{46}{2} =  \frac{2a}{2}  }  \\  \\ 23 = a

--------

\frac{k}{6}  =  \frac{4}{3}  \\  \\  \frac{24}{ 3}  =  \frac{3k}{3}  \\  \\ 8 = k

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Janae's savings account has $50 on September 19. If she plans to save $5 every day, how much money will Janae have in her saving
Akimi4 [234]

Janae will have $ 95 in her account after 10 days.

<h3>What is an Arithmetic Progression?</h3>

A sequence of numbers that has a fixed common difference between any two consecutive numbers is called an arithmetic progression (A.P.)

Given,

Amount in Janae's account = $ 50

Amount she wishes to save for 10 days = $ 5

This scenario models an arithmetic progression(A.P)

In an A.P,

a _n = a + (n-1)d

where a _n = nth term, a is the first term, n is the no. of terms and d is the common difference.

In this question, a = 50, n = 10, d = 5 and we have to find out a _n

Therefore, a _n = 50 + (10-1)x5

                         = 50 + 45 = 95

Answer:- Janae will have $ 95 in her account after 10 days.

To learn more about arithmetic progression, refer to:

brainly.com/question/24191546

#SPJ10

8 0
11 months ago
This is my problem. I need help ​
koban [17]

Answer:

1: -3

2: She gives him $3 per week

3: 18

4: How much money she initially borrowed

5: y = -3x + 18

7 0
2 years ago
Erase 3/5 of the shape part below. How much of the original figure will be shaded?
VMariaS [17]
2/5 will be shaded in the original how I got it s that you make a rectangle and make fifths inside and shade in 3/5 of that and see what matches up on the top.
6 0
3 years ago
Read 2 more answers
Question 4 of 10
VARVARA [1.3K]

Answer:

A. x=3

Step-by-step explanation:

4(5x+3)=14x+30

multiply 4 to 5x and multiply 4 yo 3

20x+12=14x+30

move terms

20x-14x=30-12

subtract 20x to 14x and subtract 30 to 12

6x=18

divide both sides by 8

x=3

5 0
3 years ago
Find the value of each trigonometric ratio. For example answer "2/3".
motikmotik

Answer:

The value of sin X = 12 / 13

Step-by-step explanation:

Given

  • The angle ∠X
  • The side opposite to angle ∠X = 12
  • The hypotenuse = 13

To determine

sin X = ?

We know that the trigonometric ratio involving sin Ф such as

sin Ф = opposite / hypotenuse

Here:

  • Ф = Angle X
  • The side opposite of Angle X = 12
  • Hypotenuse = 15

so substituting Ф = X, opposite = 12 and hypotenuse = 13 in the equation

sin Ф = opposite / hypotenuse

sin X = 12 / 13

Therefore, the value of sin X = 12 / 13

4 0
3 years ago
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