All categories

3 years ago

Help! Please help!,!

Mathematics

1 answer:

kati45 [8]3 years ago

7 0

Answer:

use the pythagoras theorem ok for 3rd side

i.e. (5.6)²+(3.9)²=c²

You might be interested in

— 3х – 19 <-18<br> What is x

kondaur [170]

Answer:

x>-1/3

Step-by-step explanation:

−3x<−18+19

−3x<1

x>− 1/3

6 0

3 years ago

To French shop for fresh fruit. Elena buys a watermelon for $7.75 and 5 pounds of cherries Tammy buys a pineapple for $4.15 and

lys-0071 [83]

Answer: Elena spent $3.6 +x more than Tammy.

Step-by-step explanation:

Let the cost of each cherry be 'x'.

Cost of watermelon for Elena = $7.75

Cost of 5 pounds of cherries = 5x

So, Equation for Elena would be

$7.75+5x$

Cost of pineapple = $4.15

Number of pounds of cherries = 4

So, Equation for Tammy would be

$\$4.15+4x$

Now, Elena spent more than Tammy by

$(7.75+5x)-(4.15+4x)\\\\=7.75+5x-4.15-4x\\\\=3.6+x$

Hence, Elena spent $3.6 +x more than Tammy.

8 0

3 years ago

Please help me with my math i am very confused

Mice21 [21]

Answer:

Step-by-step explanation:

He is able to teach 3 classes per night.

8 0

4 years ago

Read 2 more answers

In a race from point X to point Y and back, Jack averages 30 miles per hour to point Y and 10 miles per hour back to point X. Sa

svlad2 [7]

Answer:

Sandy will finish the race first.

Step-by-step explanation:

Let D be the total one sided distance in miles, ( between X and Y ),

We know that,

$Speed =\frac{Distance}{Time}$

$\implies Time =\frac{Distance}{Speed}$

Since, from point X to point Y and back, Jack averages 30 miles per hour to point Y and 10 miles per hour back to point X.

So, the total time taken by Jack = $\frac{D}{30}+\frac{D}{10}$

$=\frac{D+3D}{30}$

$=\frac{4D}{30}$

$=0.1333D$

Also, Sandy averages 20 miles per hour in both directions,

So, the total time taken by Sandy = $\frac{D}{20}+\frac{D}{20}$

$=\frac{D+D}{20}$

$=\frac{2D}{20}$

$=\frac{D}{10}$

$=0.10D$

∵ 0.133D > 0.10D

Hence, Sandy will finish the race first.

3 0

3 years ago

Two of the corresponding angles and the included sides of two triangles are congruent. Which statement must be true regarding th

Cerrena [4.2K]

They are similar. If two of the corresponding angles are the same, the third one is corresponding. If a triangle angles are, 60, 60, 60, that adds up to 180... but if a triangle's angles are ,60 ,60, 50, that is impossible. All angle measures must add up to 180*.

8 0

3 years ago

Read 2 more answers