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lora16 [44]
3 years ago
6

⊥∪What is the sum? 1.3+(−2.4)

Mathematics
2 answers:
Nana76 [90]3 years ago
7 0
You can write this as 1.3-2.4. The plus sign with the negative sign is unnecessary. Anyway the answer you are looking for is -1.1
aleksklad [387]3 years ago
5 0
The sum of 1.3-(-2.4) is -1.1
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How to do this question plz answer me step by step plzz ​
liubo4ka [24]

Answer:

Adult's ticket is 7, child's ticket is 2

Step-by-step explanation:

Let adult's ticket be "x" and child's ticket be "y"

So, for family 1, the equation would be: 2x+3y=20

And, for family 2, the equation would be: 1x+4y=15

Use the substitution method in the second equation to know what x in terms of y is:

x + 4y = 15 (substact 4y from both sides)

x= 15 - 4y

Plugin y into the first equation:

2(15-4y)+3y=20 (distribute)

30-8y+3y=20 (simplify)

30-5y = 20 (get y by itself)

-5y = -10 (divide by -5)

y = 2

Now that you know the value of y (child's ticket), figure out x by plugging in 2 into any of the equations (I chose the second):

1x+4(2) = 15 (simplify)

x + 8 = 15 (subtract 8)

x = 7

3 0
4 years ago
Read 2 more answers
Find the value of x of the given right triangle.​
Firlakuza [10]

Answer:

In the right triangle, the side a=4 and the hypotenuse c=7.

To find: the value of x

We have,

a=6 and c=7

Now,by the pythagorean theorem,

{a}^{2}  +  {b}^{2}  =  {c}^{2}

Substitute the values,

{6}^{2}  +  {x}^{2}  =  {7}^{2}

36 +  {x}^{2}  = 49

Subtract 36 from each sides,

{x}^{2}  = 13

Take square root from each sides,

x =  \sqrt{13}

Hence, the value of x is \sqrt{13}.

6 0
2 years ago
What is the equation of the line? <br> A. y=2x+2 <br> B. y=2x-4 C. <br> y=1/2x+2 <br> D. y=1/2x-4
stira [4]

Answer:

The equation for the line that is shown is: Answer choice C.

y =\frac{1}{2}x+2

Step-by-step explanation:

From what I can see, there is several clues that can lead us to our answer by just looking at the graph:

  • y - intercept
  • Whether if the slope is positive or negative

A. Your y - intercept is where your line crosses at a point on the y - axis, so your y - intercept is:

  • y - intercept = 2

If you do not know, the y - intercept form in slope - intercept form is the 'b' value:

y = mx + b

b = y - intercept

mx = slope (m is actually the letter that represents it, but thought I might include x in it to show you from the formula)

Now that you have found your 'b' value, you can eliminate several answer choices: Answer choice B. and D.

B. Now we will see if the slope is positive or negative.

To find out whether it is positive or negative, we would have to take a look at the direction of the line, in this case, the line is going upwards to the right, meaning the slope is positive.

C. Now to find the slope:

To do this we must know the fraction like form of a slope, this would be:

(m = slope)

To determine the slope, m, it is \frac{RISE}{RUN}

'Rise' meaning the y point and 'run' being the x point

In this case:

the line rises up 1 and runs over 2

so, m = \frac{1}{2}

Your final answer will be:

y =\frac{1}{2}x+2

6 0
3 years ago
Pythagorean theorem: Manuel purchases a rectangular picture
san4es73 [151]

Answer:

width = 15

Step-by-step explanation:

a² + b² = c² This the the formula

(PLUG IN)

8² + b² = 17²

64 + b² = 289 (subtract 64 on both sides)

b² = 225 (square root)

b = 15

Hope this helps ya!!

8 0
3 years ago
a photo that is 4in wide and 6in high enlarged to a poster that is 3ft wide and 4 1/2 ft hugh what is the ratio of the width of
salantis [7]
1:9 is the ratio

You can check this by converting the feet to inches and dividing the greatest number by the smaller number.
6 0
3 years ago
Read 2 more answers
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