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2 years ago

Solve pls brainliest

Mathematics

2 answers:

Shtirlitz [24]2 years ago

8 0

Answer:

1.8 or 1 4/5 should be the answer!

bezimeni [28]2 years ago

7 0

She went up 2 steps, and each step is 9/10 feet high.

2 x 9/10 = 18 / 10

18 / 10 = 1 8/10

1 8/10 = 1 4/5

Answer: 1 4/5 feet

Hope this helps!

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How many solutions does this linear system of equations have?

Irina18 [472]

It has infinite solutions

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3 years ago

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Sajia has 30 Books in her library. she sold 9 books at the thrift store on Saturday. Write and solve and inequality to determine

ELEN [110]

Sajia can sell 21 books she can sell if she comes back on sunday and the required inequality is $9 + x \leq 30$

Solution:

Given that Sajia has 30 Books in her library

She sold 9 books at the thrift store on Saturday

To find: We have to write and solve an inequality to determine number of more books she can sell if she comes back on sunday

Let "x" be the number of more books she can sell if she comes back on sunday

We can write a inequality as:

$\text{ books already sold } + \text{ number of books remaining } \leq \text{ total number of books she has }$

$9 + x \leq 30$

Now moving 9 from L.H.S to R.H.S we get,

$x \leq 30 - 9$

On solving 30 - 9 = 21,

$x \leq 21$

So Sajia can sell 21 books she can sell if she comes back on sunday

6 0

2 years ago

Kevin has $24 to buy a gift for his cousin he found a gift for $22 with a 5% sales tax added on will Kevin have enough money to

STatiana [176]

Kevin will have enough. He will need to pay $23.10.

5% of $22 is $1.10.

22+1.10=23.10

23.10 is less than 24

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3 years ago

When Rosina babysits for 5 hours she charges $40 and when she babysits for 6 hours she charges $48. How much does Rosina charge

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3 years ago

Solve for x. Round to the nearest tenth, if necessary.

e-lub [12.9K]

Answer:

$\boxed {\boxed {\sf x \approx 1.9}}$

Step-by-step explanation:

We are asked to find x, a missing side in a triangle.

This is a right triangle because there is a small square in the corner representing a 90 degree or right angle. Therefore, we can use right triangle trigonometry. The three main functions are:

sinθ= opposite/hypotenuse
cosθ= adjacent/hypotenuse
tanθ= opposite/adjacent

Examine the triangle. We will use angle S, measuring 54 degrees, for theta. Side QR, measuring x, is opposite angle S. Side QS, measuring 2.3, is the hypotenuse because it is opposite the right angle. Since we have the opposite and hypotenuse, we will use sine.

$sin \theta = \frac {opposite}{hypotenuse}$

θ= 54
opposite= x
hypotenuse = 2.3

$sin (54)= \frac{ x}{2.3}$

We are solving for x, so we must isolate the variable. It is being divided by 2.3 The inverse operation of division is multiplication, so we multiply both sides by 2.3

$2.3* sin (54)= \frac{x}{2.3}*2.3$

$2.3* sin (54)=x$

$2.3*0.8090169944=x$

$1.860739087 =x$

Round to the nearest tenth. The 6 in the hundredth place to the right tells us to round the 8 up to a 9.

$1.9 \approx x$

x is approximately 1.9

7 0

3 years ago