1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alja [10]
3 years ago
6

Help me................​

Mathematics
2 answers:
Sveta_85 [38]3 years ago
5 0
X=5/ y=4

7x-4=31. 4y+8=24
+4. +4. -8 -8
7x=35. 4y=16
/7 /7. /4. /4
X=5. Y=4
Taya2010 [7]3 years ago
4 0

Answer:

x = 5. y = 4

Step-by-step explanation:

7x - 4 = 31

7x = 35

x = 5

4y + 8 = 24

4y = 16

y = 4

You might be interested in
2x greater than of equal to -2/3x(4x+4)
ryzh [129]

x  \geqslant  -  \frac{1}{ {12x}^{2} + 12x }
(I can be wrong.)
7 0
3 years ago
What is the first term in the sequence for which d = -2 and a7 = 3?
AnnZ [28]

Answer:

Final answer is c. 15

Step-by-step explanation:

We need to find about what is the first term in the sequence for which d = -2 and a7 = 3

We will use nth term formula of arithmetic sequence.

a_n=a+\left(n-1\right)d

we have been given a7 that means 7th term is 3

so plug n=7, d=-2 and a_n=3 into above formula

3=a+\left(7-1\right)(-2)

3=a+6(-2)

3=a-12

15=a

Hence final answer is c. 15

7 0
3 years ago
Read 2 more answers
How many movies, m, can she download for $50?
TiliK225 [7]
How much does it cost for one movie
6 0
3 years ago
Can someone help me with this please?
Elena-2011 [213]
29.) This is simply interpreting the linear function.
The function:
96+2.1x
a.) The 96 is what you start with from the beginning. So, we know Rachel weighed 96 ounces when she was born.
b.) Again, interpretation. The 2.1 is the slope, or the change in the line. So we know that Rachel gains 2.1 ounces each day.
30.) For this one, you just have to plug 9 into the equation for x.
6 0
3 years ago
An experiment has a high degree of ______________ when it shows convincingly that changes in behavior are a function of the inde
adelina 88 [10]

The answer is Internal Validity.

Internal Validity is high in an experiment. when it demonstrates persuasively that changes in behavior are caused by the independent variable and not by unknown factors.

What is Internal Validity?

  • Internal validity is defined as the degree to which the observed results represent the truth in the population under investigation and are not the consequence of methodological flaws.
  • Internal validity is the degree of certainty that the causal link being examined is reliable and unaffected by other factors or variables.
  • The extent to which study results may be extended (generalized) to other contexts, groups, or events is referred to as external validity.

To learn more about Internal Validity visit:

brainly.com/question/9292757

#SPJ4

5 0
1 year ago
Other questions:
  • How do I simplify this math problem <br><br> -9c+9c-12
    13·2 answers
  • What is the value of a ?
    12·1 answer
  • 2x-6 &lt;-6 figure it out
    6·2 answers
  • 1. Solve the following equation.(MAFS.8.EE.3.7)<br><br> 5(3x + 7) + 2x = 7x – 5(–2x + 9)
    5·2 answers
  • The number of typing errors made by a typist has a Poisson distribution with an average of three errors per page. If more than t
    7·1 answer
  • 7<br> 7 6/7 - 3 1/10 =<br> 0/1
    15·1 answer
  • It snowed 134.46 inches on Monday and 8.3 inches on Tuesday. How much did it snow on Monday and Tuesday combined?
    11·2 answers
  • 180 miles in 4 hours at what rate how long will it take to drive 270 miles
    11·1 answer
  • Select the expression that represents the following statement multiply 6 by 2, and then subtract 4. 2 - 4x6
    11·1 answer
  • Please huryyyyyyyyy please helpppppp
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!