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
kaheart [24]
3 years ago
15

Find a number whose product with 7 is the same as its sum with 18

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
7 0
7 + 18 = 25
25 ÷ 7 = 3.5714285714285714285

so 3.5714285714285714285 is the answer
You might be interested in
Which point is the midpoint of segment AB?
Allushta [10]
Point X is the midpoint
7 0
3 years ago
What is 700,000+900+60+7 in standard form
Lerok [7]

Step-by-step explanation:

here is the answer for your question

4 0
3 years ago
Read 2 more answers
Find the second partial derivatives of the following functions
artcher [175]

(a) <em>z</em> = 3<em>x</em> ² - 4<em>xy</em> + 15<em>y</em> ²

has first-order partial derivatives

∂<em>z</em>/∂<em>x</em> = 6<em>x</em> - 4<em>y</em>

∂<em>z</em>/∂<em>y</em> = -4<em>x</em> + 30<em>y</em>

and thus second-order partial derivatives

∂²<em>z</em>/∂<em>x</em> ² = 6

∂²<em>z</em>/∂<em>x</em>∂<em>y</em> = -4

∂²<em>z</em>/∂<em>y</em>∂<em>x</em> = -4

∂²<em>z</em>/∂<em>y</em> ² = 30

where ∂²<em>z</em>/∂<em>x</em>∂<em>y</em> = ∂/∂<em>x</em> [∂<em>z</em>/∂<em>y</em>] and ∂²<em>z</em>/∂<em>y</em>∂<em>x</em> = ∂/∂<em>y</em> [∂<em>z</em>/∂<em>x</em>].

(b) <em>z</em> = 4<em>x</em> <em>eʸ</em>

∂<em>z</em>/∂<em>x</em> = 4<em>eʸ</em>

∂<em>z</em>/∂<em>y</em> = 4<em>x</em> <em>eʸ</em>

∂²<em>z</em>/∂<em>x</em> ² = 0

∂²<em>z</em>/∂<em>x</em>∂<em>y</em> = 4<em>eʸ</em>

∂²<em>z</em>/∂<em>y</em>∂<em>x</em> = 4<em>eʸ</em>

∂²<em>z</em>/∂<em>y</em> ² = 4<em>x</em> <em>eʸ</em>

<em />

(c) <em>z</em> = 6<em>x</em> ln(<em>y</em>)

∂<em>z</em>/∂<em>x</em> = 6 ln(<em>y</em>)

∂<em>z</em>/∂<em>y</em> = 6<em>x</em>/<em>y</em>

∂²<em>z</em>/∂<em>x</em> ² = 0

∂²<em>z</em>/∂<em>x</em>∂<em>y</em> = 6/<em>y</em>

∂²<em>z</em>/∂<em>y</em>∂<em>x</em> = 6/<em>y</em>

∂²<em>z</em>/∂<em>y</em> ² = -6<em>x</em>/<em>y</em> ²

6 0
3 years ago
Estimate the difference by rounding each number to the nearest hundred worksheets
Gnom [1K]

just round it into the nearest hundreds

1234 into 1200


7 0
3 years ago
According to an on-line dating website, 20% of the couples who are in committed relationships met on-line. Suppose you know 15 c
tester [92]
15/x = 20/100
15*100 = 20*x
1500 = 20x
1500/20 = 20x/20
75 = x

15/75 = 20/100

the expected number of couples who met online is 75
4 0
3 years ago
Other questions:
  • 8/3 × (−2 1/2) = ?<br><br><br>Thanks!
    11·2 answers
  • A team of psychologists studied the effect of multitasking on the completion of cognitive tasks. A group of 40 women participate
    15·1 answer
  • [6.01] MA.8.S.3.2<br><br> Which set of data has 3 modes?
    13·1 answer
  • PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!<br><br> What is the value of x?
    11·2 answers
  • Please help me answer :)) <br> Will give brainlst
    11·1 answer
  • Please help for Algebra II
    15·1 answer
  • The four highest scores on the floor exercise at a gymnastics meet were 9.685, 9.28, 9.366, and 9.5 points.
    10·2 answers
  • Convert to the given unit. 65 m = cm​
    12·1 answer
  • James is 105 pounds. His coach
    14·1 answer
  • Researchers will conduct a year-long investigation of walking and cholesterol levels in adults. They will
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!