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3 years ago

Or Question 5 i:

Mathematics

1 answer:

IrinaVladis [17]3 years ago

5 0

Answer:

the costs for the holiday for each person

£250

Step-by-step explanation:

So ,

£250 × 7 = 1,750

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I don’t understand number 4

kobusy [5.1K]

1.75
2.15
3.105
4.90
these are the answers

3 0

3 years ago

Read 2 more answers

10th term of an= 20-2n

Dmitry [639]

Answer:

We have that $a_{n} = 20-2n$

Step-by-step explanation:

We have just to replace n=10 on the general equation

$a_{10} = 20-2×10$

Therefore:

$a_{10} = 0$

8 0

4 years ago

Please help me with this algebra PLEEASSEee!!!

amid [387]

11. 5x^2-30=0
+30 to both sides
5x^2=30
÷5 both sides
x^2=6
square root both sides
x= +square root 6 ,- square root 6

12. 4x^2+10=26
-10 both sides
4x^2=16
÷4 both sides
x^2=4
square root both sides
x=+2,-2

13. a=72yrd^2
l=2w
w=?
a=l×w
72=2w×w
72=2w^2
÷2 both sides
36=w^2
square root both sides
w=+6,-6
a measurement can't be - so w=6
Plug into l=2w
l=2×6

l=12
w=6

5 0

3 years ago

4/6 + 1/12. Quick answer.

Fynjy0 [20]

nvm lol 3/4( had to redo

6 0

3 years ago

A solar collector is 2,0 m long by 1,5 m wide. It is held in place

icang [17]

Answer:

The width of the frame is 0.0746 meters

Step-by-step explanation:

We are told that after the frame has been attached to the solar collector, the area that is left exposed is $2.5m^2$ . As we see in the figure, the dimensions of this area are

$(w-2x)$ and $(l-2x)$

where $x$ is the width of the frame.

The product of these dimensions must equal the exposed area:

$(w-2x)(l-2x)=2.5m^2$

Now since $w=1.5m$ and $l=2m$ we have:

$(1.5-2x)(2-2x)=2.5$

we expand this and solve for x using the quadratic formula:

$4x^2-7x+3=2.5$

$4x^2-7x+0.5=0$

we get two solutions:

$x=1.6753$

$x=0.0746$

We take the second solution i.e $x=0.0746$ , because first one gives a width larger than the dimensions of the solar collector which cannot be possible.

Thus the width of the frame is 0.0746 meters.

7 0

3 years ago