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3 years ago

14

This month Jan saved $80 from her babysitting job. Last month she saved $20. How many times more did she save this month than la

st month?

1 answer:

Ede4ka [16]3 years ago

6 0

Answer:

4 times more

Step-by-step explanation:

80/20=4

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Given a+b=7 and a-b=3, find the following<br><br> 3^a÷3^b

gulaghasi [49]

Answer:

27

Step-by-step explanation:

a + b = 7

a - b = 3

2a = 10

a = 5

b = 7 - 5

b = 2

3⁵ / 3² = 3³ using law of indices

3³ = 27.

3 0

2 years ago

PLZ help me with this question

olga2289 [7]

Answer:

3

Step-by-step explanation:

3x4=12

its 3 because you need to find the balances so when you have 3 and you multiped my 4 you get 12 same as the other square.

3 0

2 years ago

Find S11 for 1 + 2 + 4 + 8 +

Free_Kalibri [48]

Evaluating the given sequence, it is evident that the next number is twice the number prior to it. Thus, the given is a geometric sequence with first term (a1) equal to 1 and common ratio of 2. The geometric series may be calculated by the equation,

Sn = a1 x (1 - r^n) / (1 - r)

where Sn is the sum of n terms in this case, n = 11.
Substituting the known values,

<span> Sn = 1 x (1 - 2^11) / (1 - 2) = 2047
</span>
Thus, S11 is 2047.

4 0

3 years ago

SELECT ALL OF THE EQUATIONS THAT

anygoal [31]

Answer:

x+9= 12 yes x = 3

4 + X= 9 no x = 5

X x 5 = 18 no x = 3.6

21 / x= 7 yes x= 3

hope this helps

4 0

2 years ago

Lostsunrise [7]

Using the law of sines, it is found that the distance between the kite and the dog is of 284.77 meters.

<h3>What is the law of sines?</h3>

Suppose we have a triangle in which:

The length of the side opposite to angle A is a.

The length of the side opposite to angle B is b.

The length of the side opposite to angle C is c.

The lengths and the sine of the angles are related as follows:

$\frac{\sin{A}}{a} = \frac{\sin{B}}{b} = \frac{\sin{C}}{c}$

For the situation described, we have that:

The height is opposite to the angle of 42º.

The 425 meters are opposite to the angle of 87º.

Hence:

$\frac{\sin{42^\circ}}{h} = \frac{\sin{87^\circ}}{425}$

Applying cross multiplication:

$h = 425\frac{\sin{42^\circ}}{\sin{87^\circ}}$

h = 284.77 meters.

More can be learned about the law of sines at brainly.com/question/25535771

#SPJ1

3 0

2 years ago