2 years ago

Solve the simultaneous equations 5y−4x=8 y+x=7 x= ? y= ?

Mathematics

2 answers:

ddd [48]2 years ago

7 0

Y=4
X=3
5(4)-4(3)=8
4+3=7

inna [77]2 years ago

4 0

Answer:

x=3 y=4

Step-by-step explanation:

5(4)=20

4(3)= 12

20-12=8

4+3=7

You might be interested in

I don’t quite get the concept yet and i really don’t wanna bother the teacher again :/ please help

IrinaVladis [17]

Answer:

they are asking which claims are true vs false

Step-by-step explanation:

I totally get not wanting to bother our teachers again,... (that is why we're here)

m (AB = 20

m<ABD = 140

m (AD = 60

I think they want to know which ones (based on the "graph") are true,...

7 0

2 years ago

A kite with a 100 foot-long string is caught in a tree. When the full length of the string is stretched in a straight line to th

spayn [35]

Hyp=100,adj side=30

angle= $cos^{-1}(30/100)$

6 0

3 years ago

Read 2 more answers

An older person is 4 years older than 7 times the age of a younger person. The sum of their ages is 44. Find their ages

Fynjy0 [20]

Answer:

5 yr and 39 yr

Step-by-step explanation:

Let x = the age of the younger

then 7x + 4 = the age of the older

Now x + 7x + 4 = 44

8x + 4 = 44

8x = 40

x = 5

7x + 4 = 7(5) + 4 = 35 + 4 = 39

Check: 5 + 39 = 44

8 0

2 years ago

F(x) = 5.22 – 3 on 2, 2+h]

Vika [28.1K]

Answer:

Step-by-step explanation:Wait im confused.

4 0

3 years ago

Stacey went to six different auto repair shops to get the following estimates to repair her car.

topjm [15]

Answer:

534 is the mean.

Step-by-step explanation:

to calculate the mean you add all the numbers together (for example this set of numbers):

785, 585, 465, 409, 495, 465

=3204

then divide the number of numbers that you added together , (in this case 6)

3204/6

534

5 0

2 years ago